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Amagbégnon R, Dechavanne C, Dambrun M, Yehouénou U, Akondé N, Migot-Nabias F, Nounnagnon Tonouhéwa AB, Hamidović A, Fievet N, Tonato-Bagnan A, Ogouyemi-Hounto A, Alao MJ, Dardé ML, Mercier A, Kindé-Gazard D. Correction Notice to: "Seroepidemiology of toxoplasmosis in pregnant women and detection of infection acquired during pregnancy in Cotonou, Benin" - Parasite 30, 43 (2023), https://doi.org/10.1051/parasite/2023040. Parasite 2023; 30:48. [PMID: 37966311 PMCID: PMC10648692 DOI: 10.1051/parasite/2023050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Affiliation(s)
- Richard Amagbégnon
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
| | | | | | - Urielle Yehouénou
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
| | - Noé Akondé
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
| | | | | | - Azra Hamidović
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
| | | | - Angéline Tonato-Bagnan
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
| | - Aurore Ogouyemi-Hounto
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
- Service de Microbiologie du Centre National Hospitalier Universitaire – Hubert Koutoukou MAGA (CNHU-HKM) de Cotonou Bénin
| | - Maroufou Jules Alao
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
| | - Marie-Laure Dardé
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
- Centre National de Référence (CNR) sur la toxoplasmose/Toxoplasma Biological Resource Center (BRC), CHU de Limoges 87042 Limoges France
| | - Aurélien Mercier
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
- Centre National de Référence (CNR) sur la toxoplasmose/Toxoplasma Biological Resource Center (BRC), CHU de Limoges 87042 Limoges France
| | - Dorothée Kindé-Gazard
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
- Service de Microbiologie du Centre National Hospitalier Universitaire – Hubert Koutoukou MAGA (CNHU-HKM) de Cotonou Bénin
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Amagbégnon R, Dechavanne C, Dambrun M, Yehouénou U, Akondé N, Migot-Nabias F, Nounnagnon Tonouhéwa AB, Hamidović A, Fievet N, Tonato-Bagnan A, Ogouyemi-Hounto A, Alao MJ, Dardé ML, Mercier A, Kindé-Gazard D. Seroepidemiology of toxoplasmosis in pregnant women and detection of infection acquired during pregnancy in Cotonou, Benin. Parasite 2023; 30:43. [PMID: 37855713 PMCID: PMC10586240 DOI: 10.1051/parasite/2023040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/21/2023] [Indexed: 10/20/2023] Open
Abstract
Assessing the prevalence of toxoplasmosis in pregnant women and the associated risk factors is the first step in defining policy for the prevention of congenital toxoplasmosis in a given population. An epidemiological study was conducted during prenatal consultations at the CHU-MEL of Cotonou (Benin) between September 2018 and April 2021 and recruited 549 pregnant women to determine the seroprevalence and potential factors associated with Toxoplasma gondii infection. Toxoplasma gondii IgG/IgM antibodies were detected using an enzyme-linked fluorescence assay (ELFA) technique, an IgG avidity test and an IgG/IgM comparative Western blot to diagnose the maternal toxoplasmosis serological status, the possibility of an infection acquired during pregnancy and congenital infection, respectively. Concomitantly, the participants answered a questionnaire investigating potential risk factors. Toxoplasmosis seroprevalence was estimated at 44.4% (95% CI 40.3-48.6) and the factors significantly associated with T. gondii seropositivity were: age over 30 years, multigravid women and contact with cats. The possibility of an infection acquired during the periconceptional period or the first trimester of pregnancy concerned six women [1.1% (95% CI 0.5-2.0)]. However, due to the low rate of serological controls in seronegative women, a significant proportion of women first tested during the 3rd trimester of pregnancy, and an insufficient sample size, the incidence of primary infection during pregnancy could not be determined. No cases of congenital transmission occurred in the newborns from the suspected cases of primary infection.
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Affiliation(s)
- Richard Amagbégnon
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
| | | | | | - Urielle Yehouénou
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
| | - Noé Akondé
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
| | | | | | - Azra Hamidović
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
| | | | - Angéline Tonato-Bagnan
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
| | - Aurore Ogouyemi-Hounto
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
- Service de Microbiologie du Centre National Hospitalier Universitaire – Hubert Koutoukou MAGA (CNHU-HKM) de Cotonou Bénin
| | - Maroufou Jules Alao
- Centre Hospitalier Universitaire de la Mère et de l’Enfant-Lagune (CHU-MEL) 01 BP 107 Cotonou Bénin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
| | - Marie-Laure Dardé
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
- Centre National de Référence (CNR) sur la toxoplasmose/Toxoplasma Biological Resource Center (BRC), CHU de Limoges 87042 Limoges France
| | - Aurélien Mercier
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidémiologie des maladies chroniques en zone tropicale, Institut d’Epidémiologie et de Neurologie Tropicale, OmegaHealth Limoges France
- Centre National de Référence (CNR) sur la toxoplasmose/Toxoplasma Biological Resource Center (BRC), CHU de Limoges 87042 Limoges France
| | - Dorothée Kindé-Gazard
- Institut de Recherche Clinique du Bénin (IRCB) Abomey-Calavi Benin
- Université d’Abomey-Calavi (UAC), Faculté des Sciences de la Santé (FSS) Bénin
- Service de Microbiologie du Centre National Hospitalier Universitaire – Hubert Koutoukou MAGA (CNHU-HKM) de Cotonou Bénin
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Mondeilh A, Yovo E, Accrombessi M, Hounkonnou C, Agbota G, Atade W, Ladikpo OT, Mehoba M, Degbe A, Vianou B, Sossou D, Ndam NT, Massougbodji A, McGready R, Fievet N, Rijken MJ, Cottrell G, Briand V. Malaria Infections and Placental Blood Flow: A Doppler Ultrasound Study From a Preconception Cohort in Benin. Open Forum Infect Dis 2023; 10:ofad376. [PMID: 37577115 PMCID: PMC10414806 DOI: 10.1093/ofid/ofad376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Indexed: 08/15/2023] Open
Abstract
Background Malaria in pregnancy (MiP) has been associated with fetal growth restriction, the underlying pathogenic mechanisms of which remain poorly understood. Malaria in pregnancy is suspected to induce abnormalities in placental vascularization, leading to impaired placental development. Our study evaluated MIP's effect on uterine artery (UtA) and umbilical artery (UA) blood flow. Methods The analysis included 253 Beninese women followed throughout pregnancy and screened monthly for submicroscopic and microscopic malaria. Uterine artery Doppler measurement was performed once between 21 and 25 weeks' gestation (wg), and UA Doppler measurement was performed 1-3 times from 28 wg. Linear and logistic regression models were used to assess the effect of malaria infections on UtA Doppler indicators (pulsatility index and presence of a notch), whereas a logistic mixed model was used to assess the association between malaria infections and abnormal UA Doppler (defined as Z-score ≥2 standard deviation or absent/reversed UA end-diastolic flow). Results Primigravidae represented 7.5% of the study population; 42.3% of women had at least 1 microscopic infection during pregnancy, and 29.6% had at least 1 submicroscopic infection (and no microscopic infection). Both microscopic and submicroscopic infections before Doppler measurement were associated with the presence of a notch (adjusted odds ratio [aOR] 4.5, 95% confidence interval [CI] = 1.2-16.3 and aOR 3.3, 95% CI = .9-11.9, respectively). No associations were found between malaria before the Doppler measurement and abnormal UA Doppler. Conclusions Malaria infections in the first half of pregnancy impair placental blood flow. This highlights the need to prevent malaria from the very beginning of pregnancy.
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Affiliation(s)
- Aude Mondeilh
- Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, National Institute for Health and Medical Research (INSERM) UMR 1219, University of Bordeaux, Bordeaux, France
| | - Emmanuel Yovo
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
- Montpellier Interdisciplinary Center on Sustainable Agri-food Systems (MoISA), Université de Montpellier, Montpellier, France
| | - Manfred Accrombessi
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
- Faculty of Infectious and Tropical Diseases, Disease Control Department, London School of Hygiene and Tropical MedicineLondon, United Kingdom
| | - Cornelia Hounkonnou
- Centre d'investigation clinique, module épidémiologie clinique (CIC-EC 1425), Université Paris Cité and Université Sorbonne Paris Nord, Paris, France
- Département d’Épidémiologie, Biostatistique et Recherche Clinique, AP-HP, Hôpital BichatParis, France
| | - Gino Agbota
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - William Atade
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | | | - Murielle Mehoba
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Auguste Degbe
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Bertin Vianou
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Dariou Sossou
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Nicaise Tuikue Ndam
- Research Institute for Sustainable Development (IRD), UMR 261 MERIT, Université Paris Cité, Paris, France
| | | | - Rose McGready
- Shoklo Malaria Research Unit, Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Nadine Fievet
- Research Institute for Sustainable Development (IRD), UMR 261 MERIT, Université Paris Cité, Paris, France
| | - Marcus J Rijken
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Obstetrics and Gynecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Gilles Cottrell
- Research Institute for Sustainable Development (IRD), UMR 261 MERIT, Université Paris Cité, Paris, France
| | - Valérie Briand
- Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, National Institute for Health and Medical Research (INSERM) UMR 1219, University of Bordeaux, Bordeaux, France
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Unger HW, Hadiprodjo AJ, Gutman JR, Briand V, Fievet N, Valea I, Tinto H, D'Alessandro U, Landis SH, Ter Kuile F, Ouma P, Oneko M, Mwapasa V, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Nahlen B, Desai M, Madanitsa M, Kalilani-Phiri L, Ashorn P, Maleta K, Tshefu-Kitoto A, Mueller I, Stanisic D, Cates J, Van Eijk AM, Ome-Kaius M, Aitken EH, Rogerson SJ. Fetal sex and risk of pregnancy-associated malaria in Plasmodium falciparum-endemic regions: a meta-analysis. Sci Rep 2023; 13:10310. [PMID: 37365258 DOI: 10.1038/s41598-023-37431-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 06/21/2023] [Indexed: 06/28/2023] Open
Abstract
In areas of moderate to intense Plasmodium falciparum transmission, malaria in pregnancy remains a significant cause of low birth weight, stillbirth, and severe anaemia. Previously, fetal sex has been identified to modify the risks of maternal asthma, pre-eclampsia, and gestational diabetes. One study demonstrated increased risk of placental malaria in women carrying a female fetus. We investigated the association between fetal sex and malaria in pregnancy in 11 pregnancy studies conducted in sub-Saharan African countries and Papua New Guinea through meta-analysis using log binomial regression fitted to a random-effects model. Malaria infection during pregnancy and delivery was assessed using light microscopy, polymerase chain reaction, and histology. Five studies were observational studies and six were randomised controlled trials. Studies varied in terms of gravidity, gestational age at antenatal enrolment and bed net use. Presence of a female fetus was associated with malaria infection at enrolment by light microscopy (risk ratio 1.14 [95% confidence interval 1.04, 1.24]; P = 0.003; n = 11,729). Fetal sex did not associate with malaria infection when other time points or diagnostic methods were used. There is limited evidence that fetal sex influences the risk of malaria infection in pregnancy.
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Affiliation(s)
- Holger W Unger
- Department of Obstetrics and Gynaecology, Royal Darwin Hospital, Darwin, NT, Australia
- Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Anastasia Jessica Hadiprodjo
- Department of Medicine (RMH), Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Julie R Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Valerie Briand
- Université de Paris, UMR261, IRD, Paris, France
- Epicentre MSF, Paris, France
| | | | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de La Santé-DRCO, Nanoro, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de La Santé-DRCO, Nanoro, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto D'Alessandro
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, Gambia
- London School of Hygiene and Tropical Medicine, London, UK
| | | | - Feiko Ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Martina Oneko
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Victor Mwapasa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Laurence Slutsker
- Malaria and Neglected Tropical Diseases, Center for Malaria Control and Elimination, PATH, Seattle, WA, USA
| | - Dianne J Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | | | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Linda Kalilani-Phiri
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Per Ashorn
- Faculty of Medicine and Health Technology, Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Department for Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | | | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Jordan Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, NC, USA
| | - Anna Maria Van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Maria Ome-Kaius
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Elizabeth H Aitken
- Department of Infectious Diseases, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Stephen J Rogerson
- Department of Medicine (RMH), Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
- Department of Infectious Diseases, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
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5
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Houngbégnon P, Nouatin O, Yadouléton A, Hounkpatin B, Fievet N, Atindégla E, Dechavanne S, Guichet E, Ayouba A, Pelloquin R, Maman D, Thaurignac G, Peeters M, Aviansou A, Sourakafou S, Delaporte E, Massougbodji A, Cottrell G. Interest of seroprevalence surveys for the epidemiological surveillance of the SARS-CoV-2 pandemic in African populations: Insights from the ARIACOV project in Benin. Trop Med Int Health 2023. [PMID: 37243412 DOI: 10.1111/tmi.13895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
BACKGROUND Many SARS-CoV-2 seroprevalence surveys since the end of 2020 have disqualified the first misconception that Africa had been spared by the pandemic. Through the analysis of three SARS-CoV-2 seroprevalence surveys carried out in Benin as part of the ARIACOV project, we argue that the integration of epidemiological serosurveillance of the SARS-CoV-2 infection in the national surveillance packages would be of great use to refine the understanding of the COVID-19 pandemic in Africa. METHODS We carried out three repeated cross-sectional surveys in Benin: two in Cotonou, the economic capital in March and May 2021, and one in Natitingou, a semi-rural city in the north of the country in August 2021. Total and weighted-by-age-group seroprevalences were estimated and the risk factors for SARS-CoV-2 infection were assessed by multivariate logistic regression. RESULTS In Cotonou, a slight increase in overall age-standardised SARS-CoV-2 seroprevalence from 29.77% (95% CI: 23.12%-37.41%) at the first survey to 34.86% (95% CI: 31.57%-38.30%) at the second survey was observed. In Natitingou, the globally adjusted seroprevalence was 33.34% (95% CI: 27.75%-39.44%). A trend of high risk for SARS-CoV 2 seropositivity was observed in adults over 40 versus the young (less than 18 years old) during the first survey in Cotonou but no longer in the second survey. CONCLUSIONS Our results show that, however, rapid organisation of preventive measures aimed at breaking the chains of transmission, they were ultimately unable to prevent a wide spread of the virus in the population. Routine serological surveillance on strategic sentinel sites and/or populations could constitute a cost-effective compromise to better anticipate the onset of new waves and define public health strategies.
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Affiliation(s)
| | - Odilon Nouatin
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Benin
| | - Anges Yadouléton
- Laboratoire des Fièvres Hémorragiques Virales et des Arbovirus du Bénin, Ministère de la Santé, Cotonou, Benin
- Ecole Normale Supérieure de Natitingou, Université Nationale des Sciences Technologies, Ingénierie et Mathématiques, Abomey-Calavi, Benin
| | | | - Nadine Fievet
- Université de Paris Cité, Institut de Recherche pour le Développement, MERIT, Paris, France
| | - Eloïc Atindégla
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Benin
| | - Sébastien Dechavanne
- Université de Paris Cité, Institut de Recherche pour le Développement, MERIT, Paris, France
| | - Emilande Guichet
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | - Ahidjo Ayouba
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | - Raphaël Pelloquin
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | | | - Guillaume Thaurignac
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | - Martine Peeters
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | | | | | - Eric Delaporte
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale, Montpellier, France
| | | | - Gilles Cottrell
- Université de Paris Cité, Institut de Recherche pour le Développement, MERIT, Paris, France
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6
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Dambrun M, Sare N, Vianou B, Amagbégnon R, Fievet N, Massougbodji A, Houzé S, Migot-Nabias F. Serological diagnosis of toxoplasmosis in pregnancy: comparison between a manual commercial ELISA assay and the automated VIDAS ® kit. Eur J Clin Microbiol Infect Dis 2023; 42:759-769. [PMID: 37095264 DOI: 10.1007/s10096-023-04603-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/12/2023] [Indexed: 04/26/2023]
Abstract
Knowledge of the toxoplasmosis serological status in pregnant women is important to allow adequate management for the prevention of congenital toxoplasmosis of those who are not immunized. Serological screening is generally carried out using commercial kits to determine the presence or absence of immunoglobulins M or G in the maternal blood. Robust results are therefore needed. We evaluated the performances of a commercial ELISA assay composed of several recombinant parasite antigens and of a commercial assay using parasite lysate to determine the serological status against Toxoplasma gondii of African pregnant women. A recruitment of 106 pregnant women during their third trimester of pregnancy was carried out in Benin. Serologies were performed with recomWell Toxoplasma IgM and IgG kits. Subsequently, the serological assays were carried out by an automaton method with the VIDAS® TOXO IgM and IgG II kits. Here we compared recomWell Toxoplasma to VIDAS® TOXO results. Reproducibility tests of the recomWell kits were assessed following the discrepancies observed in the results. Of 106 plasmas tested, 47 showed anti-T. gondii IgG (44.3%), including 5 with IgM and high IgG avidity (4.7%). Of the two techniques, VIDAS® TOXO was more robust and specific for IgG while the recomWell Toxoplasma gave more false positive results. The combination of several techniques for the determination of serological toxoplasmosis status remains relevant. Methods using native proteins are closer to the reality of the environment. Therefore, kits using recombinant proteins should be tested on highly geographically diverse populations to refine their composition.
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Affiliation(s)
| | - Nawal Sare
- Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à L'Enfance, Cotonou, Bénin
| | - Bertin Vianou
- Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à L'Enfance, Cotonou, Bénin
| | - Richard Amagbégnon
- Laboratoire de Biologie Médicale, Centre Hospitalier Universitaire de la Mère et de L'Enfant-Lagune (CHU-MEL), 01 BP 107, Cotonou, Bénin
| | - Nadine Fievet
- Universite Paris Cite, MERIT, IRD, Paris, F-75006, France
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à L'Enfance, Cotonou, Bénin
- Institut de Recherche Clinique du Bénin, Cotonou, Bénin
| | - Sandrine Houzé
- Universite Paris Cite, MERIT, IRD, Paris, F-75006, France
- Service de Parasitologie, Assistance Publique - Hôpitaux de Paris, Groupe Hospitalier Bichat Claude-Bernard, Paris, France
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7
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Ahmadi S, Botton J, Zoumenou R, Ayotte P, Fievet N, Massougbodji A, Alao MJ, Cot M, Glorennec P, Bodeau-Livinec F. Lead Exposure in Infancy and Subsequent Growth in Beninese Children. Toxics 2022; 10:595. [PMID: 36287875 PMCID: PMC9609716 DOI: 10.3390/toxics10100595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/02/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Studies suggest that elevated postnatal blood lead levels (BLLs) are negatively associated with child growth. This study aimed to investigate the associations of childhood BLLs at age one year and growth outcomes at age six years (n = 661) in a cohort of children in Allada, Benin. The growth outcomes studied are weight-for-age Z-score (WAZ), height-for-age Z-score (HAZ), BMI-for-age Z-score (BMIZ), weight-for-height Z-score (WHZ), head circumference (HC), growth velocities, underweight, stunting, and wasting. Multivariable regression models examined the associations between BLLs and growth outcomes, with adjustment for potential confounders. The geometric mean BLLs was 59.3 μg/L and 82% of children had BLLs >35 μg/L at the age of 12.8 months. After adjusting for confounding factors, no overall association was found between BLL quartiles and HAZ, WAZ, BMIZ, WHZ, growth velocities, wasting, and underweight. However, boys in the highest quartile had a 1.02 cm lower HC (95% CI: [−1.81, −0.24]) as compared to the lowest quartile. Furthermore, an increased odds of being stunted was observed in children in the highest quartile of exposure compared to the first (OR: 2.43; 95% CI: [1.11−5.33]) which remained statistically significant only among girls in sex-specific strata. Blood lead was found to be associated with an increased risk of childhood stunting and a lower head circumference in a resource-limited setting.
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Affiliation(s)
- Shukrullah Ahmadi
- Centre of Research in Epidemiology and Statistics/CRESS, Université de Paris, INSERM, INRA, 75004 Paris, France
| | - Jérémie Botton
- EPI-PHARE, Epidemiology of Health Products, 93200 Saint-Denis, France
- Faculty of Pharmacy, University Paris-Sud, 92296 Châtenay-Malabry, France
| | - Roméo Zoumenou
- Institut de Recherche pour le Développement (IRD), Paris Descartes Université, 75004 Paris, France
| | - Pierre Ayotte
- Département de médecine sociale et préventive, Université Laval and Centre de toxicologie du Québec, INSPQ, Québec, QC G1V 5B3, Canada
| | - Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Paris Descartes Université, 75004 Paris, France
| | | | - Maroufou Jules Alao
- Paediatric Department, Mother and Child University and Hospital Center (CHU-MEL), Cotonou 01 BP 107, Benin
| | - Michel Cot
- Institut de Recherche pour le Développement (IRD), Paris Descartes Université, 75004 Paris, France
| | - Philippe Glorennec
- Univ Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, 35000 Rennes, France
| | - Florence Bodeau-Livinec
- Univ Rennes, EHESP, Inserm, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, 35000 Rennes, France
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8
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Henry B, Volle G, Akpovi H, Gineau L, Roussel C, Ndour PA, Tossou F, Suarez F, Palstra F, Fricot A, Chambrion C, Solinc J, Nguyen J, Garé M, Aussenac F, Cottart CH, Keyser C, Adamou R, Tichit M, Hardy D, Fievet N, Clain J, Garcia A, Courtin D, Hermine O, Sabbagh A, Buffet P. Splenic clearance of rigid erythrocytes as an inherited mechanism for splenomegaly and natural resistance to malaria. EBioMedicine 2022; 82:104167. [PMID: 35843175 PMCID: PMC9297103 DOI: 10.1016/j.ebiom.2022.104167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/25/2022] [Accepted: 06/30/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
- Benoît Henry
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France; Service des maladies infectieuses et tropicales, APHP, Hôpital Necker Enfants Malades, Centre d'Infectiologie Necker-Pasteur, Institut Imagine, Paris, France; Service des maladies infectieuses et tropicales, APHP. Université Paris Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Geoffroy Volle
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Hilaire Akpovi
- CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin
| | - Laure Gineau
- Laboratoire d'Excellence Gr-Ex, Paris, France; Université Paris Cité, IRD, MERIT, Paris, France
| | - Camille Roussel
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Papa Alioune Ndour
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Félicien Tossou
- Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED), Université d'Abomey-Calavi, Cotonou, Bénin; Ministère de la Santé, Cotonou, Bénin
| | - Felipe Suarez
- Laboratoire d'Excellence Gr-Ex, Paris, France; Service d'hématologie adultes, APHP, Hôpital Necker Enfants Malades, Paris, France; Université Paris Cité, INSERM U1163, CNRS ERL 8654, Paris, France
| | - Friso Palstra
- Laboratoire d'Excellence Gr-Ex, Paris, France; Université Paris Cité, IRD, MERIT, Paris, France
| | - Aurélie Fricot
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Charlotte Chambrion
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Julien Solinc
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France
| | - Julie Nguyen
- Laboratoire d'Excellence Gr-Ex, Paris, France; Université Paris Cité, IRD, MERIT, Paris, France
| | - Mathilde Garé
- CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin; Université Paris Cité, IRD, MERIT, Paris, France
| | - Florentin Aussenac
- CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin; Université Paris Cité, IRD, MERIT, Paris, France
| | - Charles-Henry Cottart
- Service de biochimie générale, APHP, Hôpital Necker Enfants Malades, Faculté de pharmacie, Paris, France
| | | | - Rafiou Adamou
- CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin
| | - Magali Tichit
- Institut Pasteur, Experimental Neuropathology Unit, Paris, France
| | - David Hardy
- Institut Pasteur, Experimental Neuropathology Unit, Paris, France
| | - Nadine Fievet
- Laboratoire d'Excellence Gr-Ex, Paris, France; CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin; Université Paris Cité, IRD, MERIT, Paris, France
| | - Jérôme Clain
- Laboratoire d'Excellence Gr-Ex, Paris, France; Université Paris Cité, IRD, MERIT, Paris, France
| | - André Garcia
- Laboratoire d'Excellence Gr-Ex, Paris, France; CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin; Université Paris Cité, IRD, MERIT, Paris, France
| | - David Courtin
- Laboratoire d'Excellence Gr-Ex, Paris, France; CERPAGE (Centre d'Etude et de Recherche sur les Pathologies Associées à la Grossesse et à l'Enfance), Cotonou, Bénin; Université Paris Cité, IRD, MERIT, Paris, France
| | - Olivier Hermine
- Laboratoire d'Excellence Gr-Ex, Paris, France; Service d'hématologie adultes, APHP, Hôpital Necker Enfants Malades, Paris, France; Université Paris Cité, INSERM U1163, CNRS ERL 8654, Paris, France
| | - Audrey Sabbagh
- Laboratoire d'Excellence Gr-Ex, Paris, France; Université Paris Cité, IRD, MERIT, Paris, France
| | - Pierre Buffet
- Université Paris Cité, Biologie Intégrée du Globule Rouge, UMR_S1134, BIGR, INSERM, Paris, France; Laboratoire d'Excellence Gr-Ex, Paris, France; Institut National de la Transfusion Sanguine, Paris, France; Institut Pasteur, Paris, France.
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9
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Yovo E, Accrombessi M, Agbota G, Hocquette A, Atade W, Ladikpo OT, Mehoba M, Degbe A, Mombo-Ngoma G, Massougbodji A, Jackson N, Fievet N, Heude B, Zeitlin J, Briand V. Assessing fetal growth in Africa: Application of the international WHO and INTERGROWTH-21st standards in a Beninese pregnancy cohort. PLoS One 2022; 17:e0262760. [PMID: 35061819 PMCID: PMC8782373 DOI: 10.1371/journal.pone.0262760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 01/04/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Fetal growth restriction is a major complication of pregnancy and is associated with stillbirth, infant death and child morbidity. Ultrasound monitoring of pregnancy is becoming more common in Africa for fetal growth monitoring in clinical care and research, but many countries have no national growth charts. We evaluated the new international fetal growth standards from INTERGROWTH-21st and WHO in a cohort from southern Benin. METHODS Repeated ultrasound and clinical data were collected in women from the preconceptional RECIPAL cohort (241 women with singleton pregnancies, 964 ultrasounds). We modelled fetal biometric parameters including abdominal circumference (AC) and estimated fetal weight (EFW) and compared centiles to INTERGROWTH-21st and WHO standards, using the Bland and Altman method to assess agreement. For EFW, we used INTERGROWTH-21st standards based on their EFW formula (IG21st) as well as a recent update using Hadlock's EFW formula (IG21hl). Proportions of fetuses with measurements under the 10th percentile were compared. RESULTS Maternal malaria and anaemia prevalence was 43% and 69% respectively and 11% of women were primigravid. Overall, the centiles in the RECIPAL cohort were higher than that of INTERGROWTH-21st and closer to that of WHO. Consequently, the proportion of fetuses under 10th percentile thresholds was systematically lower when applying IG21st compared to WHO standards. At 27-31 weeks and 33-38 weeks, respectively, 7.4% and 5.6% of fetuses had EFW <10th percentile using IG21hl standards versus 10.7% and 11.6% using WHO standards. CONCLUSION Despite high anemia and malaria prevalence in the cohort, IG21st and WHO standards did not identify higher than expected proportions of fetuses under the 10th percentiles of ultrasound parameters or EFW. The proportions of fetuses under the 10th percentile threshold for IG21st charts were particularly low, raising questions about its use to identify growth-restricted fetuses in Africa.
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Affiliation(s)
- Emmanuel Yovo
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Manfred Accrombessi
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
- Disease Control Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Gino Agbota
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
- IRD UMI 233 TransVIHMI- UM-INSERM U1175, Montpellier, France
| | - Alice Hocquette
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, INSERM, INRA, Paris, France
| | - William Atade
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | | | - Murielle Mehoba
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Auguste Degbe
- Institut de Recherche Clinique du Bénin (IRCB), Abomey-Calavi, Benin
| | - Ghyslain Mombo-Ngoma
- Centre de Recherches Médicales de Lambaréné (CERMEL), Lambaréné, Gabon
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Nikki Jackson
- Department of Obstetrics and Gynaecology, Oxford University, Oxford, United Kingdom
| | | | - Barbara Heude
- INSERM, UMR 1153, Centre for Research in Epidemiology and StatisticS (CRESS), “EArly life Research on later Health” (EARoH) team, Paris, France
| | - Jennifer Zeitlin
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, INSERM, INRA, Paris, France
| | - Valérie Briand
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- IRD, Inserm, Université de Bordeaux, IDLIC team, UMR 1219, Bordeaux, France
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10
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Davies S, Briand V, Accrombessi M, Fievet N, Le Bot B, Durand S, Agbota G, Yovo E, Vianou B, Sossou D, Martin-Prevel Y, Massougbodji A, Cot M, Glorennec P, Bodeau-Livinec F. Pre-conception serum ferritin concentrations are associated with metal concentrations in blood during pregnancy: A cohort study in Benin. Environ Res 2021; 202:111629. [PMID: 34242675 DOI: 10.1016/j.envres.2021.111629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/20/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Iron deficiency is a common nutritional deficiency that impacts maternal health and fetal development and is also associated with increased uptake of toxic metals. Women in sub-Saharan Africa are highly exposed to both iron deficiency and metals in the environment. As research on the developmental origins of health and disease increasingly shows impacts of pre-conception maternal health on pregnancy and fetal health, these environmental exposures are of concern. OBJECTIVES This study investigated the association between iron status pre-pregnancy and blood metal concentrations in the first trimester of pregnancy with potential implications for iron supplementation. METHODS Pre-conception and first trimester blood samples taken from 262 Beninese women were tested for serum ferritin, inflammation markers, manganese (Mn), cadmium (Cd), lead (Pb), copper, zinc, selenium, mercury and arsenic. Associations between serum ferritin adjusted for inflammation and metal concentrations were analyzed using multivariate linear regression. RESULTS Women with iron deficiency before conception (13%) were more likely to remain iron deficient in the first trimester (4%) (adjusted OR = 41.2, 95%CI 6.2; 275.0) even within the context of routine iron supplementation during pregnancy. Lower pre-pregnancy serum ferritin concentrations were significantly related to higher concentrations of Mn, Cd and Pb in the first trimester. Every 1% increase in serum ferritin concentration was associated with a 0.13% decrease in Mn (adjusted β = -0.13, 95%CI -0.18; -0.07), a 0.22% decrease in Cd (adjusted β = -0.22, 95%CI -0.28; -0.15) and a 0.06% decrease in Pb concentration (adjusted β = -0.06, 95%CI -0.12; -0.006). DISCUSSION These results suggest that increasing iron stores prior to pregnancy may prevent excessive uptake of toxic concentrations of the metals Mn, Cd and Pb and argue in favour of testing the effects of iron supplementation prior to pregnancy on metal concentrations.
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Affiliation(s)
- Sarah Davies
- Département Méthodes Quantitatives en Santé Publique (METIS), Ecole des Hautes Etudes en Santé Publique (EHESP), F-35000, Rennes, France; Université de Paris, Center of Research in Epidemiology and Statistics/CRESS, INSERM, INRA, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé)-UMR1153, F-75004, Paris, France.
| | - Valérie Briand
- Institut de Recherche Pour le Développement (IRD), University of Bordeaux, Inserm, UMR 1219, 146 rue Léo-Saignat, 33076, Bordeaux, Cedex, France; Université de Paris, MERIT, IRD, 75006, Paris, France.
| | - Manfred Accrombessi
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin; Faculty of Infectious and Tropical Diseases, Disease Control Department, London School of Hygiene and Tropical Medicine, London, United Kingdom.
| | - Nadine Fievet
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin; Institut de Recherche pour le Développement (IRD), Paris Descartes Université, 75006, Paris, France.
| | - Barbara Le Bot
- Ecole des Hautes Études en Santé Publique (EHESP), Institut National de la Sante et de la Recherche Medicale (Inserm), Institut de Recherche en Santé, Environnement et Travail (Irset)-UMR_S 1085, University of Rennes, F-35000, Rennes, France.
| | - Séverine Durand
- Ecole des Hautes Études en Santé Publique (EHESP), Institut National de la Sante et de la Recherche Medicale (Inserm), Institut de Recherche en Santé, Environnement et Travail (Irset)-UMR_S 1085, University of Rennes, F-35000, Rennes, France.
| | - Gino Agbota
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin.
| | - Emmanuel Yovo
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin.
| | - Bertin Vianou
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin.
| | - Darius Sossou
- Institut de Recherche Clinique du Benin (IRCB), 04 BP1114, Abomey-Calavi, Benin.
| | - Yves Martin-Prevel
- Nutripass Research Unit, Institut de Recherche pour le Développement (IRD), University of Montpellier, SupAgro, Montpellier, France.
| | | | - Michel Cot
- Université de Paris, MERIT, IRD, 75006, Paris, France.
| | - Philippe Glorennec
- Ecole des Hautes Études en Santé Publique (EHESP), Institut National de la Sante et de la Recherche Medicale (Inserm), Institut de Recherche en Santé, Environnement et Travail (Irset)-UMR_S 1085, University of Rennes, F-35000, Rennes, France.
| | - Florence Bodeau-Livinec
- Département Méthodes Quantitatives en Santé Publique (METIS), Ecole des Hautes Etudes en Santé Publique (EHESP), F-35000, Rennes, France; Université de Paris, Center of Research in Epidemiology and Statistics/CRESS, INSERM, INRA, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé)-UMR1153, F-75004, Paris, France.
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11
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Jafari-Guemouri S, Courtois L, Mama A, Rouas B, Neto Braga G, Accrombessi M, Massougbodji A, Ding XC, Tuikue Ndam N, Fievet N, Briand V. A Genotyping Study in Benin Comparing the Carriage of Plasmodium falciparum Infections Before Pregnancy and in Early Pregnancy: Story of a Persistent Infection. Clin Infect Dis 2021; 73:e355-e361. [PMID: 32569359 PMCID: PMC8282262 DOI: 10.1093/cid/ciaa841] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/17/2020] [Indexed: 12/16/2022] Open
Abstract
Background Malaria infections in the first trimester of pregnancy are frequent and deleterious for both mother and child health. To investigate if these early infections are newly acquired or already present in the host, we assessed whether parasites detected before pregnancy and those detected in early pregnancy are the same infection. Methods We used data from the preconceptional “RECIPAL” study (Benin, 2014–2017). Sixty-three pregnant women of 411 included who had a malaria infection detected by quantitative polymerase chain reaction both before pregnancy and at the first antenatal care (ANC) visit were selected for this study. Two highly polymorphic markers, msp-2 and glurp, and a fragment-analysis method were used to enumerate the Plasmodium falciparum genotypes and to quantify their proportions within isolates. An infection was considered as persistent when identical msp-2 and glurp genotypes were found in the corresponding prepregnancy and early-pregnancy samples. Results The median time between the 2 malaria screenings was 3 months. The median gestational age at the first ANC visit was 6.4 weeks. Most infections before pregnancy were submicroscopic infections. Based on both msp-2 and glurp genotyping, the infection was similar before and in early pregnancy in 46% (29/63) of cases. Conclusions Almost half of P. falciparum infections detected in the first trimester originate before pregnancy. Protecting young women from malaria infection before pregnancy might reduce the prevalence of malaria in early pregnancy and its related poor maternal and birth outcomes.
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Affiliation(s)
- Sayeh Jafari-Guemouri
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Laura Courtois
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Atika Mama
- Clinical Research Institute of Benin (IRCB), Abomey-Calavi, Benin
| | - Baptiste Rouas
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Gabriel Neto Braga
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Manfred Accrombessi
- Clinical Research Institute of Benin (IRCB), Abomey-Calavi, Benin.,Faculty of Infectious and Tropical Diseases, Disease Control Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | | | - Nicaise Tuikue Ndam
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Nadine Fievet
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Valérie Briand
- Université de Paris, UMR261-MERIT, Institut de Recherche pour le Développement, Paris, France.,University of Bordeaux, Inserm, Institut de Recherche pour le Développement, Inserm, University of Bordeaux, UMR, Bordeaux, France
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12
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Boivin MJ, Zoumenou R, Sikorskii A, Fievet N, Alao J, Davidson L, Cot M, Massougbodji A, Bodeau-Livinec F. [Formula: see text]Neurodevelopmental assessment at one year of age predicts neuropsychological performance at six years in a cohort of West African Children. Child Neuropsychol 2021; 27:548-571. [PMID: 33525970 PMCID: PMC8035243 DOI: 10.1080/09297049.2021.1876012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/09/2021] [Indexed: 10/22/2022]
Abstract
Rural children from Benin, west Africa were evaluated with the Mullen Scales of Early Learning (MSEL) at one year of age and then at six years with the Kaufman Assessment Battery for Children (KABC-II), the visual computerized Tests of Variables of Attention (TOVA), and the Bruininks-Oseretsky Test (BOT-2) of motor proficiency (N = 568). Although both the MSEL and KABC-II were available to the assessors in French, instructions to the mother/child were in local language of Fon. Mothers were evaluated with the Edinburgh Postpartum Depression Scale (EPDS), Caldwell HOME Scale, educational level and literacy, and a Socio-Economic Scale - also in their local language (Fon). After adjusting for maternal factors, MSEL cognitive composite was correlated with KABC-II with moderate effect sizes, but not with TOVA scores. Overall eta-squared effect for the multivariate models were moderately to strongly correlated (.07 to .37). Neurodevelopmental assessments in early childhood adapted cross-culturally are predictive of school-age neuropsychological cognitive ability.
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Affiliation(s)
- Michael J Boivin
- Michigan State University Departments of Psychiatry and of Neurology & Ophthalmology, University of Michigan Department of Psychiatry
| | | | | | - Nadine Fievet
- Mère et Enfant Face aux Infections Tropicales, Université Paris Descartes, Paris, France
| | - Jules Alao
- Mère et Enfant Face aux Infections Tropicales, Université Paris Descartes, Paris, France
| | - Leslie Davidson
- Department of Epidemiology, Mailman School of Public Health, Columbia University
| | - Michel Cot
- Université Paris Descartes, Paris, France
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Université d'Abomey-Calavi, Cotonou, Benin
| | - Florence Bodeau-Livinec
- École des hautes études en santé publique (EHESP), EPOPé team, UMR1153, F-35000 Rennes, France
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Tornyigah B, d'Almeida T, Escriou G, Viwami F, Fievet N, Luty AJF, Massougbodji A, Nielsen MA, Deloron P, Tuikue Ndam N. Plasmodium falciparum VAR2CSA-Specific IgG Subclass Responses Reflect Protection Against Low Birth Weight and Pregnancy-Associated Malaria. Front Immunol 2021; 12:610305. [PMID: 33968015 PMCID: PMC8099026 DOI: 10.3389/fimmu.2021.610305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/31/2021] [Indexed: 11/13/2022] Open
Abstract
Sequestration of Plasmodium falciparum-infected erythrocytes expressing the VAR2CSA antigen in the placenta results in poor pregnancy outcomes, including low birth weight and maternal anemia. Antigen-specific antibody-mediated immunity is acquired during successive pregnancies. Thus, evaluating VAR2CSA-specific IgG profiles among pregnant women will increase knowledge on the immunological mechanisms associated with protection, and help in the development of VAR2CSA-based placental malaria vaccines. Using the PAMVAC candidate vaccine antigen, we assessed anti-VAR2CSA IgG subclass responses of a cohort of pregnant Beninese, and analyzed their relationships with pregnancy outcomes. Cytophilic IgG1 and IgG3 responses were the most frequent, with prevalences ranging from 28% (IgG3) up to 50% (IgG1). Elevated levels of VAR2CSA-specific total IgG and cytophilic IgG3 during pregnancy were consistently associated with higher birth weights, whilst high levels of IgG4 were associated with a reduced risk of placental infections. This suggests that protective anti-VAR2CSA IgG responses are coordinated between both cytophilic and non-cytophilic antibodies.
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Affiliation(s)
- Bernard Tornyigah
- Université de Paris, MERIT, IRD, Paris, France.,Department of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Ghana
| | - Tania d'Almeida
- Université de Paris, MERIT, IRD, Paris, France.,Université Pierre et Marie Curie, Ecole doctorale 393 Pierre Louis de Santé publique, Paris, France
| | | | - Firmine Viwami
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Nadine Fievet
- Université de Paris, MERIT, IRD, Paris, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Adrian J F Luty
- Université de Paris, MERIT, IRD, Paris, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Morten A Nielsen
- Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark
| | | | - Nicaise Tuikue Ndam
- Université de Paris, MERIT, IRD, Paris, France.,Department of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Ghana
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14
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Hounkonnou CPA, Briand V, Fievet N, Accrombessi M, Yovo E, Mama A, Sossou D, Vianou B, Massougbodji A, Ndam NT, Cot M, Cottrell G. Dynamics of Submicroscopic Plasmodium falciparum Infections Throughout Pregnancy: A Preconception Cohort Study in Benin. Clin Infect Dis 2021; 71:166-174. [PMID: 32215629 PMCID: PMC7312237 DOI: 10.1093/cid/ciz748] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/05/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND In the context of global malaria elimination efforts, special attention is being paid to submicroscopic Plasmodium falciparum infections. In pregnant, sub-Saharan African women, such infections are more prevalent than microscopic infections, and are thought to have adverse effects on both mothers' and newborns' health. However, no study has studied the dynamics and determinants of these infections throughout pregnancy. Retard de Croissance Intra-uterin et Paludisme (RECIPAL), a preconception cohort study carried out in Benin between 2014 and 2017, represented a unique opportunity to assess this issue. METHODS We used data from 273 pregnant Beninese women who were followed-up from preconception to delivery. We studied the dynamics of and factors influencing submicroscopic (and microscopic) P. falciparum infections during the 3 trimesters of pregnancy, using an ordinal logistic mixed model. RESULTS The incidence rate of submicroscopic P. falciparum infections during pregnancy was 12.7 per 100 person-months (95% confidence interval [CI] 10.8-14.9), compared to 6.7 per 100 person-months (95% CI 5.5-8.1) for microscopic infections. The prevalences were highest in the first trimester for both submicroscopic and microscopic infections. After adjustment for potential confounding factors, we found that those of young age and those with a submicroscopic P. falciparum infection prior to pregnancy were at significantly higher risks of submicroscopic and microscopic infections throughout pregnancy, with a more pronounced effect in the first trimester of pregnancy. CONCLUSIONS The first trimester of pregnancy is a particularly high-risk period for P. falciparum infection during pregnancy, especially for the youngest women. Malaria prevention tools covering the preconception period and early pregnancy are urgently needed to better protect pregnant women and their newborns.
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Affiliation(s)
- Cornélia P A Hounkonnou
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France.,Sorbonne Université, Université Pierre et Marie-Curie, Paris, France
| | - Valérie Briand
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France
| | - Nadine Fievet
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France
| | | | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
| | - Atikatou Mama
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
| | - Darius Sossou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
| | - Bertin Vianou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
| | - Nicaise Tuikue Ndam
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France
| | - Michel Cot
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France
| | - Gilles Cottrell
- Université de Paris, Mère et enfant en milieu tropical: pathogènes, système de santé et transition épidémiologique, Institut de Recherche pour le Développement, Paris, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Bénin
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15
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Moussiliou A, Turner L, Cottrell G, Doritchamou J, Gbédandé K, Fievet N, Luty AJF, Massougbodji A, Theander TG, Deloron P, Lavstsen T, Tuikue Ndam N. Dynamics of PfEMP1 Antibody Profile From Birth to 12 Months of Age in Beninese Infants. J Infect Dis 2021; 221:2010-2017. [PMID: 32002541 DOI: 10.1093/infdis/jiaa043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/24/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Plasmodium falciparum-infected erythrocytes bind to specific endothelial cell receptors via members of the PfEMP1 family exported onto the erythrocyte surface. These interactions are mediated by different types of cysteine-rich interdomain region (CIDR) domains found in the N-terminal region of all PfEMP1. CIDRα1 domains bind endothelial protein C receptor (EPCR), CIDRα2-6 domains bind CD36, whereas the receptor specificity of CIDRβ/γ/δ domains is unknown. METHODS In this study, we investigated the level of immunoglobulin (Ig)G targeting the different types of PfEMP1 CIDR during the first year of life. We used plasma collected longitudinally from children of pregnant women who had been followed closely through pregnancy. RESULTS Antibodies to CIDRα1 domains were more frequent in cord blood compared with antibodies to CIDRα2-6 domains. Higher IgG levels to EPCR-binding CIDRα1 variants positively correlated with the timing of first infections. Antibodies to all PfEMP1 types declined at similar rates to the point of disappearance over the first 6 months of life. At 12 months, children had acquired antibody to all types of CIDR domains, mostly in children with documented P falciparum infections. CONCLUSIONS These observations agree with the notion that the timing and phenotype of first P falciparum infections in life are influenced by the immune status of the mother.
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Affiliation(s)
| | - L Turner
- Centre for Medical Parasitology at Department of Immunology and Microbiology (ISIM), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - G Cottrell
- Université de Paris, MERIT, IRD, Paris, France
| | - J Doritchamou
- Institut de Recherche Clinique du Bénin, Université d'Abomey-Calavi, Cotonou, Bénin
| | - K Gbédandé
- Institut de Recherche Clinique du Bénin, Université d'Abomey-Calavi, Cotonou, Bénin
| | - N Fievet
- Université de Paris, MERIT, IRD, Paris, France
| | - A J F Luty
- Université de Paris, MERIT, IRD, Paris, France
| | - A Massougbodji
- Institut de Recherche Clinique du Bénin, Université d'Abomey-Calavi, Cotonou, Bénin
| | - T G Theander
- Centre for Medical Parasitology at Department of Immunology and Microbiology (ISIM), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - P Deloron
- Université de Paris, MERIT, IRD, Paris, France
| | - T Lavstsen
- Centre for Medical Parasitology at Department of Immunology and Microbiology (ISIM), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
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16
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Hamidović A, Etougbétché JR, Tonouhewa ABN, Galal L, Dobigny G, Houémènou G, Da Zoclanclounon H, Amagbégnon R, Laleye A, Fievet N, Piry S, Berthier K, Pena HFJ, Dardé ML, Mercier A. A hotspot of Toxoplasma gondii Africa 1 lineage in Benin: How new genotypes from West Africa contribute to understand the parasite genetic diversity worldwide. PLoS Negl Trop Dis 2021; 15:e0008980. [PMID: 33571262 PMCID: PMC7904144 DOI: 10.1371/journal.pntd.0008980] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 02/24/2021] [Accepted: 11/12/2020] [Indexed: 12/16/2022] Open
Abstract
Through international trades, Europe, Africa and South America share a long history of exchanges, potentially of pathogens. We used the worldwide parasite Toxoplasma gondii to test the hypothesis of a historical influence on pathogen genetic diversity in Benin, a West African country with a longstanding sea trade history. In Africa, T. gondii spatial structure is still non-uniformly studied and very few articles have reported strain genetic diversity in fauna and clinical forms of human toxoplasmosis so far, even in African diaspora. Sera from 758 domestic animals (mainly poultry) in two coastal areas (Cotonou and Ouidah) and two inland areas (Parakou and Natitingou) were tested for T. gondii antibodies using a Modified Agglutination Test (MAT). The hearts and brains of 69 seropositive animals were collected for parasite isolation in a mouse bioassay. Forty-five strains were obtained and 39 genotypes could be described via 15-microsatellite genotyping, with a predominance of the autochthonous African lineage Africa 1 (36/39). The remaining genotypes were Africa 4 variant TUB2 (1/39) and two identical isolates (clone) of Type III (2/39). No difference in terms of genotype distribution between inland and coastal sampling sites was found. In particular, contrarily to what has been described in Senegal, no type II (mostly present in Europe) was isolated in poultry from coastal cities. This result seems to refute a possible role of European maritime trade in Benin despite it was one of the most important hubs during the slave trade period. However, the presence of the Africa 1 genotype in Brazil, predominant in Benin, and genetic analyses suggest that the triangular trade was a route for the intercontinental dissemination of genetic strains from Africa to South America. This supports the possibility of contamination in humans and animals with potentially imported virulent strains. The parasite Toxoplasma gondii is a worldwide-distributed pathogen, able to infect all warm-blooded animals. There are important differences in the clinical expression of the infection in direct relation with the parasite genetic profile. In some regions, the geographical structuration of its genetic diversity points towards a crucial role of human activities in some lineages introduction or sorting. Benin is a West African country with a history of extensive transcontinental exchanges. Our genetic study of Toxoplasma in Benin shows a surprisingly homogeneous and autochthonous diversity, which contrasts with previous studies from other West and Central African countries. In Benin, the absence of European Toxoplasma lineages may be explained by the extreme rarity of the house mouse (Mus musculus), a host species that was previously described as highly susceptible to the mouse-virulent African strains. Might Benin be the origin region for the Africa 1 lineage, our results suggest that Guinean Gulf coasts may be a starting point of this lineage towards South America, especially Brazil, during the slave trade. As a whole, the present study provides further insights into the recent evolutionary history of Toxoplasma gondii and its consequences on human and animal health.
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Affiliation(s)
- Azra Hamidović
- INSERM, Univ. Limoges, CHU Limoges, IRD, U1094, Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
- * E-mail:
| | - Jonas Raoul Etougbétché
- UAC, EPAC, Laboratoire de Recherche en Biologie Appliquée, Unité de Recherche sur les Invasions Biologiques, Cotonou, Benin
| | | | - Lokman Galal
- INSERM, Univ. Limoges, CHU Limoges, IRD, U1094, Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | - Gauthier Dobigny
- UAC, EPAC, Laboratoire de Recherche en Biologie Appliquée, Unité de Recherche sur les Invasions Biologiques, Cotonou, Benin
- Centre de Biologie pour la Gestion des Populations, IRD, CIRAD, INRA, Montpellier SupAgro, MUSE, Montpellier, France
| | - Gualbert Houémènou
- UAC, EPAC, Laboratoire de Recherche en Biologie Appliquée, Unité de Recherche sur les Invasions Biologiques, Cotonou, Benin
| | - Honoré Da Zoclanclounon
- Laboratoire d’Expérimentation Animale, Unité de Biologie Humaine, Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
| | - Richard Amagbégnon
- Laboratoire de biologie médicale, Centre Hospitalo-Universitaire de la Mère et de l’Enfant Lagune (CHU-MEL), Cotonou, Bénin
| | - Anatole Laleye
- Laboratoire d’Expérimentation Animale, Unité de Biologie Humaine, Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
| | - Nadine Fievet
- UMR216-MERIT, IRD, Université Paris-5, Sorbonne Paris Cité, Paris, France; Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Bénin
| | - Sylvain Piry
- Centre de Biologie pour la Gestion des Populations, IRD, CIRAD, INRA, Montpellier SupAgro, MUSE, Montpellier, France
| | - Karine Berthier
- Centre de Biologie pour la Gestion des Populations, IRD, CIRAD, INRA, Montpellier SupAgro, MUSE, Montpellier, France
| | - Hilda Fátima Jesus Pena
- Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Marie-Laure Dardé
- INSERM, Univ. Limoges, CHU Limoges, IRD, U1094, Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
- Centre National de Référence Toxoplasmose/Toxoplasma Biological Resource Center, CHU Limoges, Limoges, France
| | - Aurélien Mercier
- INSERM, Univ. Limoges, CHU Limoges, IRD, U1094, Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
- Centre National de Référence Toxoplasmose/Toxoplasma Biological Resource Center, CHU Limoges, Limoges, France
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17
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Briand V, Cottrell G, Tuikue Ndam N, Martiáñez–Vendrell X, Vianou B, Mama A, Kouwaye B, Houzé S, Bailly J, Gbaguidi E, Sossou D, Massougbodji A, Accrombessi M, Mayor A, Ding XC, Fievet N. Correction to: Prevalence and clinical impact of malaria infections detected with a highly sensitive HRP2 rapid diagnostic test in Beninese pregnant women. Malar J 2020; 19:328. [PMID: 32894149 PMCID: PMC7487944 DOI: 10.1186/s12936-020-03400-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via the original article.
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18
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Ahmadi S, Bodeau-Livinec F, Zoumenou R, Garcia A, Courtin D, Alao J, Fievet N, Cot M, Massougbodji A, Botton J. Comparison of growth models to describe growth from birth to 6 years in a Beninese cohort of children with repeated measurements. BMJ Open 2020; 10:e035785. [PMID: 32948547 PMCID: PMC7511607 DOI: 10.1136/bmjopen-2019-035785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE To select a growth model that best describes individual growth trajectories of children and to present some growth characteristics of this population. SETTINGS Participants were selected from a prospective cohort conducted in three health centres (Allada, Sekou and Attogon) in a semirural region of Benin, sub-Saharan Africa. PARTICIPANTS Children aged 0 to 6 years were recruited in a cohort study with at least two valid height and weight measurements included (n=961). PRIMARY AND SECONDARY OUTCOME MEASURES This study compared the goodness-of-fit of three structural growth models (Jenss-Bayley, Reed and a newly adapted version of the Gompertz growth model) on longitudinal weight and height growth data of boys and girls. The goodness-of-fit of the models was assessed using residual distribution over age and compared with the Akaike Information Criterion (AIC) and Bayesian Information Criterion (BIC). The best-fitting model allowed estimating mean weight and height growth trajectories, individual growth and growth velocities. Underweight, stunting and wasting were also estimated at age 6 years. RESULTS The three models were able to fit well both weight and height data. The Jenss-Bayley model presented the best fit for weight and height, both in boys and girls. Mean height growth trajectories were identical in shape and direction for boys and girls while the mean weight growth curve of girls fell slightly below the curve of boys after neonatal life. Finally, 35%, 27.7% and 8% of boys; and 34%, 38.4% and 4% of girls were estimated to be underweight, wasted and stunted at age 6 years, respectively. CONCLUSION The growth parameters of the best-fitting Jenss-Bayley model can be used to describe growth trajectories and study their determinants.
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Affiliation(s)
- Shukrullah Ahmadi
- Université de Paris, Centre of Research in Epidemiology and Statistics /CRESS, INSERM, INRA, Paris, France
| | - Florence Bodeau-Livinec
- Université de Paris, Centre of Research in Epidemiology and Statistics /CRESS, INSERM, INRA, Paris, France
- EHESP, F-35000 Rennes, France
| | - Roméo Zoumenou
- Institut de Recherche pour le Développement (IRD), Cotonou, Benin
| | - André Garcia
- MERIT (Mère et Enfant Face aux Infections Tropicales)-UMR 216, Institut de Recherche pour le Développement (IRD), Université Paris Descartes, Paris, France
| | - David Courtin
- MERIT (Mère et Enfant Face aux Infections Tropicales)-UMR 216, Institut de Recherche pour le Développement (IRD), Université Paris Descartes, Paris, France
| | - Jules Alao
- Paediatric Department, Mother and Child University and Hospital Center (CHU-MEL), Cotonou, Benin
| | - Nadine Fievet
- MERIT (Mère et Enfant Face aux Infections Tropicales)-UMR 216, Institut de Recherche pour le Développement (IRD), Université Paris Descartes, Paris, France
| | - Michel Cot
- MERIT (Mère et Enfant Face aux Infections Tropicales)-UMR 216, Institut de Recherche pour le Développement (IRD), Université Paris Descartes, Paris, France
| | - Achille Massougbodji
- Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Littoral, Benin
| | - Jérémie Botton
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products, French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, Ile-de-France, France
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19
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Accrombessi M, Yovo E, Fievet N, Cottrell G, Agbota G, Gartner A, Martin-Prevel Y, Vianou B, Sossou D, Fanou-Fogny N, Djossinou D, Massougbodji A, Cot M, Briand V. Effects of Malaria in the First Trimester of Pregnancy on Poor Maternal and Birth Outcomes in Benin. Clin Infect Dis 2020; 69:1385-1393. [PMID: 30561538 DOI: 10.1093/cid/ciy1073] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 12/12/2018] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND In sub-Saharan Africa, malaria in the first half of pregnancy is harmful for both the mother and her fetus. However, malaria in the first trimester of pregnancy, when women are usually not protected against malaria, has been little investigated. For the first time, we assessed the effects of malaria in the first trimester on maternal and birth outcomes using a preconceptional study design. METHODS From June 2014 to March 2017, 1214 women of reproductive age were recruited and followed monthly until 411 became pregnant. The pregnant women were then followed from 5-6 weeks of gestation until delivery. Path analysis was used to assess the direct effect (ie, not mediated by malaria in the second or third trimester) of malaria in the first trimester on maternal anemia and poor birth outcomes. The cumulative effect of infections during pregnancy on the same outcomes was also evaluated. RESULTS The prevalence of malaria infections in the first trimester was 21.8%. Malaria in the first trimester was significantly associated with maternal anemia in the third trimester (adjusted odds ratio 2.25, 95% confidence interval 1.11-4.55). While we did not find evidence of any direct effect of first trimester malaria infections on birth outcomes, their association with infections later in pregnancy tended to increase the risk of low birth weights. CONCLUSIONS Malaria infections in the first trimester were highly prevalent and have deleterious effects on maternal anemia. They highlight the need for additional preventive measures, starting in early pregnancy or even before conception.
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Affiliation(s)
- Manfred Accrombessi
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Nadine Fievet
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France
| | - Gilles Cottrell
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France
| | - Gino Agbota
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Agnès Gartner
- UJoint Research Unit 204, Nutrition and Food of the Populations in the South (NUTRIPASS), French National Research Institute for Sustainable Development, Université de Montpellier, SupAgro, Montpellier, France
| | - Yves Martin-Prevel
- UJoint Research Unit 204, Nutrition and Food of the Populations in the South (NUTRIPASS), French National Research Institute for Sustainable Development, Université de Montpellier, SupAgro, Montpellier, France
| | - Bertin Vianou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Darius Sossou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Nadia Fanou-Fogny
- Ecole de Nutrition et des Sciences et Technologies Alimentaires, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Benin
| | - Diane Djossinou
- UJoint Research Unit 204, Nutrition and Food of the Populations in the South (NUTRIPASS), French National Research Institute for Sustainable Development, Université de Montpellier, SupAgro, Montpellier, France.,Ecole de Nutrition et des Sciences et Technologies Alimentaires, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Benin
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Michel Cot
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France
| | - Valérie Briand
- Joint Research Unit 216, Mothers and Children Facing Tropical Infections (MERIT), French National Research Institute for Sustainable Development, Université Paris 5, Sorbonne Paris Cité, France
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20
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Hounkonnou CPA, Ndam NT, Fievet N, Accrombessi M, Yovo E, Mama A, Sossou D, Vianou B, Massougbodji A, Briand V, Cot M, Cottrell G. Sub-optimal Intermittent Preventive Treatment in pregnancy (IPTp) is associated with an increased risk of submicroscopic P. falciparum infection in pregnant women: a prospective cohort study in Benin. Clin Infect Dis 2020; 73:e3759-e3767. [PMID: 32901806 PMCID: PMC8662796 DOI: 10.1093/cid/ciaa1355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Indexed: 01/07/2023] Open
Abstract
Background Harmful maternal and neonatal health outcomes result from malaria in pregnancy, the prevention of which primarily relies on intermittent preventive treatment in pregnancy (IPTp) with sulfadoxine-pyrimethamine (SP). The World Health Organization recommends IPTp-SP in sub-Saharan Africa, but implementation is highly heterogeneous and often suboptimal in terms of the number of doses and their timing. In this study, we assessed the impact of this heterogeneity on malaria in pregnancy, mainly with respect to submicroscopic Plasmodium falciparum infections. Methods We used data from 273 Beninese women followed throughout pregnancy. Screening for P. falciparum infections, using both microscopy-based and polymerase chain reaction (PCR)–based methods, was performed monthly, and information on IPTp-SP doses was collected. Gestational age was estimated by repeated ultrasound scans. Using a negative binomial model, we investigated the effect of IPTp-SP doses and timing after 17 weeks of gestation on the number of P. falciparum infections, focusing on submicroscopic infections detectable only by PCR. Results At least 2 IPTp-SP doses were taken by 77.3% of the women. The median gestational age at the first IPTp-SP dose was 22 weeks. A late first IPTp-SP dose (>21.2 weeks) was marginally associated with an increased number of P. falciparum infections (adjusted incidence rate ratio [aIRR] = 1.3; P = .098). The number of IPTp-SP doses was not associated with the number of submicroscopic infections (aIRR = 1.2, P = .543). Conclusions A late first IPTp-SP dose failed to provide optimal protection against P. falciparum, especially submicroscopic infections. This highlights the need for a new antimalarial drug for IPTp that could be taken early in pregnancy.
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Affiliation(s)
- Cornélia P A Hounkonnou
- Université de Paris, MERIT, IRD, Paris, France.,Sorbonne Université, Université Pierre et Marie-Curie, Paris, France
| | | | | | - Manfred Accrombessi
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Bénin.,Faculty of Infectious and Tropical Diseases, Disease Control Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Emmanuel Yovo
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Bénin
| | - Atikatou Mama
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Bénin
| | - Darius Sossou
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Bénin
| | - Bertin Vianou
- Institut de Recherche Clinique du Bénin, Abomey-Calavi, Bénin
| | | | - Valérie Briand
- IRD, Inserm, Université de Bordeaux, IDLIC team, UMR, Bordeaux, France
| | - Michel Cot
- Université de Paris, MERIT, IRD, Paris, France
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21
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Fievet N, Ezinmegnon S, Agbota G, Sossou D, Ladekpo R, Gbedande K, Briand V, Cottrell G, Vachot L, Yugueros Marcos J, Pachot A, Textoris J, Blein S, Lausten-Thomsen U, Massougbodji A, Bagnan L, Tchiakpe N, d'Almeida M, Alao J, Dossou-Dagba I, Tissieres P. SEPSIS project: a protocol for studying biomarkers of neonatal sepsis and immune responses of infants in a malaria-endemic region. BMJ Open 2020; 10:e036905. [PMID: 32709653 PMCID: PMC7380952 DOI: 10.1136/bmjopen-2020-036905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Neonatal sepsis outreaches all causes of neonatal mortality worldwide and remains a major societal burden in low and middle income countries. In addition to limited resources, endemic morbidities, such as malaria and prematurity, predispose neonates and infants to invasive infection by altering neonatal immune response to pathogens. Nevertheless, thoughtful epidemiological, diagnostic and immunological evaluation of neonatal sepsis and the impact of gestational malaria have never been performed. METHODS AND ANALYSIS A prospective longitudinal multicentre follow-up of 580 infants from birth to 3 months of age in urban and suburban Benin will be performed. At delivery, and every other week, all children will be examined and clinically evaluated for occurrence of sepsis. At delivery, cord blood systematic analysis of selected plasma and transcriptomic biomarkers (procalcitonin, interleukin (IL)-6, IL-10, IP10, CD74 and CX3CR1) associated with sepsis pathophysiology will be evaluated in all live births as well as during the follow-up, and when sepsis will be suspected. In addition, whole blood response to selected innate stimuli and extensive peripheral blood mononuclear cells phenotypic characterisation will be performed. Reference intervals specific to sub-Saharan neonates will be determined from this cohort and biomarkers performances for neonatal sepsis diagnosis and prognosis tested. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Comité d'Ethique de la Recherche - Institut des Sciences Biomédicales Appliquées (CER-ISBA 85 - 5 April 2016, extended on 3 February 2017). Results will be disseminated through international presentations at scientific meetings and publications in peer-reviewed journals. TRIAL REGISTRATION NUMBER ClinicalTrials.gov registration number: NCT03780712.
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Affiliation(s)
- Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Universite Paris Descartes, Paris, Île-de-France, France
| | - Sem Ezinmegnon
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Gino Agbota
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | - Darius Sossou
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | | | - Komi Gbedande
- Institut de Recherche Clinique du Benin, Cotonou, Benin
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
| | - Gilles Cottrell
- UMR216, Institut de Recherche pour le Développement, Cotonou, Benin
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Laurence Vachot
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Javier Yugueros Marcos
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Alexandre Pachot
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Julien Textoris
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
- Département d'Anesthésie et de Réanimation, Hospices Civils de Lyon, LYON Cedex 03, France
| | - Sophie Blein
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Ulrik Lausten-Thomsen
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
| | | | - Lehila Bagnan
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
| | - Nicole Tchiakpe
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, Centre Hospitalier Universitaire de la Mère et de l'Enfant Lagune (CHUMEL), Cotonou, Benin
| | - Marceline d'Almeida
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
- Institut de Recherche Clinique du Benin, Calavi, Île-de-France, Benin
| | | | | | - Pierre Tissieres
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
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22
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Briand V, Cottrell G, Tuike Ndam N, Martiáñez-Vendrell X, Vianou B, Mama A, Kouwaye B, Houzé S, Bailly J, Gbaguidi E, Sossou D, Massougbodji A, Accrombessi M, Mayor A, Ding XC, Fievet N. Prevalence and clinical impact of malaria infections detected with a highly sensitive HRP2 rapid diagnostic test in Beninese pregnant women. Malar J 2020; 19:188. [PMID: 32448310 PMCID: PMC7247134 DOI: 10.1186/s12936-020-03261-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/15/2020] [Indexed: 02/07/2023] Open
Abstract
Background While sub-microscopic malarial infections are frequent and potentially deleterious during pregnancy, routine molecular detection is still not feasible. This study aimed to assess the performance of a Histidine Rich Protein 2 (HRP2)-based ultrasensitive rapid diagnostic test (uRDT, Alere Malaria Ag Pf) for the detection of infections of low parasite density in pregnant women. Methods This was a retrospective study based on samples collected in Benin from 2014 to 2017. A total of 942 whole blood samples collected in 327 women in the 1st and 3rd trimesters and at delivery were tested by uRDT, conventional RDT (cRDT, SD BIOLINE Malaria Ag Pf), microscopy, quantitative polymerase chain-reaction (qPCR) and Luminex-based suspension array technology targeting P. falciparum HRP2. The performance of each RDT was evaluated using qPCR as reference standard. The association between infections detected by uRDT, but not by cRDT, with poor maternal and birth outcomes was assessed using multivariate regression models. Results The overall positivity rate detected by cRDT, uRDT, and qPCR was 11.6% (109/942), 16.2% (153/942) and 18.3% (172/942), respectively. Out of 172 qPCR-positive samples, 68 were uRDT-negative. uRDT had a significantly better sensitivity (60.5% [52.7–67.8]) than cRDT (44.2% [36.6–51.9]) and a marginally decreased specificity (93.6% [91.7–95.3] versus 95.7% [94.0–97.0]). The gain in sensitivity was particularly high (33%) and statistically significant in the 1st trimester. Only 28 (41%) out of the 68 samples which were qPCR-positive, but uRDT-negative had detectable but very low levels of HRP2 (191 ng/mL). Infections that were detected by uRDT but not by cRDT were associated with a 3.4-times (95%CI 1.29–9.19) increased risk of anaemia during pregnancy. Conclusions This study demonstrates the higher performance of uRDT, as compared to cRDTs, to detect low parasite density P. falciparum infections during pregnancy, particularly in the 1st trimester. uRDT allowed the detection of infections associated with maternal anaemia.
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Affiliation(s)
- Valérie Briand
- Institut de Recherche Pour le Développement (IRD), University of Bordeaux, Inserm, UMR 1219, 146 rue Léo-Saignat, 33076, Bordeaux Cedex, France. .,Université de Paris, MERIT, IRD, 75006, Paris, France.
| | | | | | | | - Bertin Vianou
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin
| | - Atika Mama
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin
| | | | - Sandrine Houzé
- Université de Paris, MERIT, IRD, 75006, Paris, France.,AP-HP, Centre National de Référence sur le paludisme, hôpital Bichat-Claude-Bernard, 75017, Paris, France
| | - Justine Bailly
- AP-HP, Centre National de Référence sur le paludisme, hôpital Bichat-Claude-Bernard, 75017, Paris, France
| | - Erasme Gbaguidi
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin
| | - Darius Sossou
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin
| | | | - Manfred Accrombessi
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin.,Faculty of Infectious and Tropical Diseases, Disease Control Department, London School of Hygiene and Tropical Medicine, WC1E 7HT, London, UK
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic of Barcelona, Universitat de Barcelona, Barcelona, 08036, Spain
| | | | - Nadine Fievet
- Université de Paris, MERIT, IRD, 75006, Paris, France
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23
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Agbota G, Fievet N, Heude B, Accrombessi M, Ahouayito U, Yovo E, Dossa D, Dramane L, Gartner A, Ezinmègnon S, Yugueros Marcos J, Vachot L, Tissières P, Massougbodji A, Martin-Prével Y, Cot M, Briand V. Poor maternal anthropometric status before conception is associated with a deleterious infant growth during the first year of life: a longitudinal preconceptional cohort. Pediatr Obes 2020; 15:e12573. [PMID: 31466135 DOI: 10.1111/ijpo.12573] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/12/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND According to the Developmental Origins of Health and Diseases concept, exposures in the preconception period may be critical. For the first time, we evaluated the effect of preconception poor anthropometric status on infant's growth in sub-Saharan Africa. METHODS A mother-child cohort was followed prospectively from preconception to 1 year old in Benin. Maternal anthropometric status was assessed by prepregnancy body mass index (BMI), approximated by BMI at the first antenatal visit before 7 weeks' gestation, and gestational weight gain (GWG). BMI was categorized as underweight, normal, overweight, and obesity according to World Health Organization standards. GWG was categorized as low (<7 kg), mild (7-12 kg), and high (>12 kg). In infant, stunting and wasting were defined as length-for-age and weight-for-length z scores less than -2 SD, respectively. We evaluated the association between BMI/GWG and infant's weight and length at birth and during the first year of life, as well as with stunting and wasting at 12 months using mixed linear and logistic regression models. RESULTS In multivariate, preconceptional underweight was associated with a lower infant's weight at birth and during the first year (-164 g; 95% CI, -307 to -22; and -342 g; 95% CI, -624 to -61, respectively) and with a higher risk of stunting at 12 months (adjusted odds ratio [aOR] = 3.98; 95% CI, 1.01-15.85). Furthermore, preconceptional obesity and a high GWG were associated with a higher weight and length at birth and during the first year. CONCLUSION Underweight and obesity before conception as well as GWG were associated with infant's growth. These results argue for preventive interventions starting as early as the preconception period to support child long-term health.
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Affiliation(s)
- Gino Agbota
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin
| | - Nadine Fievet
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
| | - Barbara Heude
- Team "EArly life Research on later Health" (EARoH), INSERM, UMR 1153, Centre for Research in Epidemiology and Statistics (CRESS), Paris, France.,Paris Descartes University, Paris, France
| | - Manfred Accrombessi
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin.,Clinical Research Institute of Benin (IRCB), Abomey-Calavi, Benin
| | - Urbain Ahouayito
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin
| | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin
| | - Djamirou Dossa
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin
| | - Latifou Dramane
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin
| | - Agnès Gartner
- Nutripass, UMR204, IRD, Université de Montpellier, SupAgro, Montpellier, France
| | - Sem Ezinmègnon
- Medical Diagnostic Discovery Department (MD3), bioMérieux, Marcy l'Etoile, France.,UMR 9198, Institut de Biologie Intégrative de la Cellule, Université Paris Saclay, Saint-Aubin, France
| | | | - Laurence Vachot
- Medical Diagnostic Discovery Department (MD3), bioMérieux, Marcy l'Etoile, France
| | - Pierre Tissières
- UMR 9198, Institut de Biologie Intégrative de la Cellule, Université Paris Saclay, Saint-Aubin, France
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin.,Clinical Research Institute of Benin (IRCB), Abomey-Calavi, Benin
| | - Yves Martin-Prével
- Nutripass, UMR204, IRD, Université de Montpellier, SupAgro, Montpellier, France
| | - Michel Cot
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
| | - Valérie Briand
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
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24
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Agbota G, Polman K, Wieringa FT, Campos-Ponce M, Accrombessi M, Yovo E, Roucher C, Ezinmègnon S, Marcos JY, Vachot L, Tissières P, Massougbodji A, Fievet N, Cot M, Briand V. Maternal malaria but not schistosomiasis is associated with a higher risk of febrile infection in infant during the first 3 months of life: A mother-child cohort in Benin. PLoS One 2019; 14:e0222864. [PMID: 31536589 PMCID: PMC6752763 DOI: 10.1371/journal.pone.0222864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/09/2019] [Indexed: 01/21/2023] Open
Abstract
Background Malaria and schistosomiasis represent two of the most prevalent and disabling parasitic infections in developing countries. Few studies have evaluated the effect of maternal schistosomiasis and malaria in the peri-conceptional period on infant’s risk of infection. Methods In Benin, women were followed from the preconception period until delivery. Subsequently, their children were followed from birth to 3 months of age. Pre-pregnancy malaria, malaria in pregnancy (MiP)—determined monthly using a thick blood smear—and urinary schistosomiasis—determined once before pregnancy and once at delivery using urine filtration—were the main maternal exposures. Infant’s febrile infection (fever with respiratory, gastrointestinal and/or cutaneous clinical signs anytime during follow-up) was the main outcome. In a secondary analysis, we checked the relation of malaria and schistosomiasis with infant’s hemoglobin (Hb) concentration. Both effects were separately assessed using logistic/mixed linear regression models. Results The prevalence of MiP was 35.7% with 10.8% occurring during the 1st trimester, and the prevalence of schistosomiasis was 21.8%. From birth to 3 months, 25.3% of infants had at least one episode of febrile infection. In multivariate analysis, MiP, particularly malaria in the 1st trimester, was significantly associated with a higher risk of infant’s febrile infection (aOR = 4.99 [1.1; 22.6], p = 0.03). In secondary results, pre-pregnancy malaria and schistosomiasis were significantly associated with a lower infant’s Hb concentration during the first 3 months. Conclusion We evidenced the deleterious effect of maternal parasitic infections on infant’s health. Our results argue in favor of the implementation of preventive strategies as early as in the peri-conception.
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Affiliation(s)
- Gino Agbota
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Bénin
- * E-mail:
| | - Katja Polman
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Section Infectious Diseases, Department of Health Sciences, VU Amsterdam, Amsterdam, The Netherlands
| | - Frank T. Wieringa
- Nutripass, UMR204, Institut de Recherche pour le Développement, IRD/UM/SupAgro, Montpellier, France
| | - Maiza Campos-Ponce
- Section Infectious Diseases, Department of Health Sciences, VU Amsterdam, Amsterdam, The Netherlands
| | | | - Emmanuel Yovo
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
| | - Clémentine Roucher
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Sem Ezinmègnon
- Medical Diagnostic Discovery Department (MD3), bioMérieux, Marcy l’Etoile, France
- UMR 9198, Institut de biologie Intégrative de la Cellule, Université Paris Saclay, Paris, France
| | | | - Laurence Vachot
- Medical Diagnostic Discovery Department (MD3), bioMérieux, Marcy l’Etoile, France
| | - Pierre Tissières
- UMR 9198, Institut de biologie Intégrative de la Cellule, Université Paris Saclay, Paris, France
| | - Achille Massougbodji
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Bénin
| | - Nadine Fievet
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
| | - Michel Cot
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
| | - Valérie Briand
- MERIT, IRD, Université Paris 5, Sorbonne Paris Cité, Paris, France
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25
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Accrombessi M, Fievet N, Yovo E, Cottrell G, Agbota G, Massougbodji A, Cot M, Briand V. Prevalence and Associated Risk Factors of Malaria in the First Trimester of Pregnancy: A Preconceptional Cohort Study in Benin. J Infect Dis 2019; 217:1309-1317. [PMID: 29325055 DOI: 10.1093/infdis/jiy009] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 01/05/2018] [Indexed: 02/06/2023] Open
Abstract
Background There is a lack of data on the burden of malaria in the first trimester of pregnancy in Africa, mainly because pregnant women generally attend the maternity clinic late. Bed nets are rarely provided to women before the second trimester of pregnancy and intermittent preventive treatment with sulfadoxine-pyrimethamine is not recommended before the second trimester, leaving women insufficiently or not protected in early pregnancy. Methods To assess the burden of first trimester malaria, 387 women were followed up monthly from preconception to delivery. They were screened for malaria monthly from early pregnancy until delivery. A logistic multilevel model was used to assess maternal factors associated with malaria during the first trimester. Results The proportion of women with at least 1 microscopic malaria infection during the first trimester of pregnancy was 20.8%. Women infected with malaria preconception were more likely to be infected during the first trimester (adjusted odds ratio: 2.68; 95% confidence interval, 1.24-5.78). Early gestational age was also positively correlated with malaria infection. Conclusions Using a preconceptional study design, we showed that malaria was highly prevalent in early pregnancy. This calls for the assessment of new strategies that could protect women as soon as the first trimester.
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Affiliation(s)
- Manfred Accrombessi
- Mère et Enfant Face aux Infections Tropicales, French National Research Institute for Sustainable Development, Paris Descartes University, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Nadine Fievet
- Mère et Enfant Face aux Infections Tropicales, French National Research Institute for Sustainable Development, Paris Descartes University, France
| | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Gilles Cottrell
- Mère et Enfant Face aux Infections Tropicales, French National Research Institute for Sustainable Development, Paris Descartes University, France
| | - Gino Agbota
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance, Cotonou, Benin
| | - Michel Cot
- Mère et Enfant Face aux Infections Tropicales, French National Research Institute for Sustainable Development, Paris Descartes University, France
| | - Valérie Briand
- Mère et Enfant Face aux Infections Tropicales, French National Research Institute for Sustainable Development, Paris Descartes University, France
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26
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Bancone G, Menard D, Khim N, Kim S, Canier L, Nguong C, Phommasone K, Mayxay M, Dittrich S, Vongsouvath M, Fievet N, Le Hesran JY, Briand V, Keomany S, Newton PN, Gorsawun G, Tardy K, Chu CS, Rattanapalroj O, Dong LT, Quang HH, Tam-Uyen N, Thuy-Nhien N, Hien TT, Kalnoky M, Nosten F. Molecular characterization and mapping of glucose-6-phosphate dehydrogenase (G6PD) mutations in the Greater Mekong Subregion. Malar J 2019; 18:20. [PMID: 30674319 PMCID: PMC6343352 DOI: 10.1186/s12936-019-2652-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 01/16/2019] [Indexed: 12/31/2022] Open
Abstract
Background Plasmodium vivax malaria elimination can only be achieved by the deployment of 8-aminoquinolines (primaquine and tafenoquine) in combination with ACT to kill both blood and liver-stage parasites. However, primaquine and the other 8-aminoquinolines cause dose-dependent haemolysis in subjects with G6PD deficiency, an X-linked disorder of red blood cells that is very common in populations living in tropical and subtropical areas. In order to inform safer use of 8-aminoquinolines in the Greater Mekong Subregion, a multi-centre study was carried out to assess the prevalence of G6PD deficiency and to identify the main G6PD variants in samples collected in Cambodia, Lao PDR, Myanmar, Thailand and Vietnam. Methods Blood samples were collected in the five countries during National Malaria Surveys or during Population Surveys. During Population Surveys samples were characterized for G6PD phenotype using the Fluorescent Spot Test. Samples were then genotyped for a panel of G6PD mutations. Results G6PD deficiency was found to be common in the region with an overall mean prevalence of deficient or mutated hemizygous males of 14.0%, ranging from a mean 7.3% in Thailand, 8.1% in Lao PDR, 8.9% in Vietnam, 15.8% in Myanmar and 18.8% in Cambodia. Mahidol and Viangchan mutations were the most common and widespread variants found among the nine investigated. Conclusions Owing to the high prevalence of G6PD deficiency in the Greater Mekong Subregion, strategies for vivax malaria elimination should include point-of-care G6PD testing (both qualitative and quantitative) to allow safe and wide treatment with 8-aminoquinolines. Electronic supplementary material The online version of this article (10.1186/s12936-019-2652-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Germana Bancone
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand. .,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Didier Menard
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.,Malaria Genetics and Resistance Group, Institut Pasteur, Paris, France
| | - Nimol Khim
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Saorin Kim
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Lydie Canier
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Chea Nguong
- National Centre for Parasitology, Entomology and Malaria Control (CNM), Phnom Penh, Cambodia
| | - Koukeo Phommasone
- Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Mayfong Mayxay
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic.,Institute of Research and Education Development, University of Health Sciences, Ministry of Health, Vientiane, Lao People's Democratic Republic
| | - Sabine Dittrich
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic.,Foundation for Innovative New Diagnostics (FIND), Geneva, Switzerland
| | - Malavanh Vongsouvath
- Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Jean-Yves Le Hesran
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Valerie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Sommay Keomany
- Salavan Provincial Hospital, Salavan, Lao People's Democratic Republic
| | - Paul N Newton
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Gornpan Gorsawun
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Kaelan Tardy
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Cindy S Chu
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Le Thanh Dong
- Institute of Malariology, Parasitology and Entomology - Ho Chi Minh City (IMPE-HCM), Ho Chi Minh City, Vietnam
| | - Huynh Hong Quang
- Institute of Malariology, Parasitology and Entomology - Quy Nhon (IMPE-QN), Quy Nhon, Vietnam
| | - Nguyen Tam-Uyen
- Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | - Nguyen Thuy-Nhien
- Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | - Tran Tinh Hien
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | | | - Francois Nosten
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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Waltmann A, Patel JC, Thwai KL, Hathaway NJ, Parobek CM, Massougbodji A, Fievet N, Bailey JA, Deloron P, Juliano JJ, Ndam NT, Meshnick SR. Matched Placental and Circulating Plasmodium falciparum Parasites are Genetically Homologous at the var2csa ID1-DBL2X Locus by Deep Sequencing. Am J Trop Med Hyg 2018; 98:77-82. [PMID: 29342401 DOI: 10.4269/ajtmh.17-0529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In pregnancy-associated malaria, infected erythrocytes accumulate in the placenta. It is unclear if in polyclonal infections this results in distinct peripheral and placental parasite populations. We used long amplicon deep sequencing of Plasmodium falciparum var2csa ID1-DBL2X from 15 matched peripheral and placental samples collected at delivery from a high transmission area to determine genetic homology. Despite substantial sequence variation and detecting 23 haplotypes, the matched pairs mostly contained the same genetic variants, with 11 pairs sharing 100% of their variants, whereas others showed some heterogeneity. Thus, at delivery, peripheral and placental parasites appear to intermix and placental genotypes can be inferred through peripheral sampling.
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Affiliation(s)
- Andreea Waltmann
- Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Jaymin C Patel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Kyaw L Thwai
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Nicholas J Hathaway
- Program in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, Massachusetts
| | - Christian M Parobek
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le paludisme associé à la Grossesse et à l'Enfance, Université d'Abomey-Calavi, Cotonou, Benin
| | - Nadine Fievet
- UMR216 - MERIT, Institut de Recherche pour le Développement, COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Jeffery A Bailey
- Division of Transfusion Medicine, Department of Medicine, University of Massachusetts, Worcester, Massachusetts.,Program in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, Massachusetts
| | - Philippe Deloron
- UMR216 - MERIT, Institut de Recherche pour le Développement, COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Jonathan J Juliano
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina.,Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.,Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Nicaise Tuikue Ndam
- UMR216 - MERIT, Institut de Recherche pour le Développement, COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Steven R Meshnick
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.,Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
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Agbota G, Bodeau-Livinec F, Accrombessi M, Ahouayito U, Fievet N, Cot M, Briand V. Maternal nutritional status before and during pregnancy and child’s early neurocognitive development. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G Agbota
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - F Bodeau-Livinec
- Obstetrical Perinatal and Pediatric Epidemiology Research Team Centre for Epidemiology and Biostatistics (U1153-EPOPé) National Institute for Health and Medical Research (INSERM) Université Paris, Descartes Paris, France
- Département Méthodes Quantitatives, Rennes, France
| | - M Accrombessi
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - U Ahouayito
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - N Fievet
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
| | - M Cot
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
| | - V Briand
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
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29
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Guy M, Accrombessi M, Fievet N, Yovo E, Massougbodji A, Le Bot B, Glorennec P, Bodeau-Livinec F, Briand V. Toxics (Pb, Cd) and trace elements (Zn, Cu, Mn) in women during pregnancy and at delivery, South Benin, 2014-2015. Environ Res 2018; 167:198-206. [PMID: 30036786 DOI: 10.1016/j.envres.2018.06.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 06/26/2018] [Accepted: 06/29/2018] [Indexed: 06/08/2023]
Abstract
During pregnancy, fetal development can be hindered by maternal exposure to toxic elements and abnormal concentrations of trace elements. Few data are available in African countries. Our goal was to assess the body burden of lead (Pb), cadmium (Cd), manganese (Mn), zinc (Zn) and copper (Cu) in pregnant women in Benin. The study was carried out in Sô-Ava district, from November 2015 to April 2016. Sixty women were recruited from the RECIPAL pre-conceptional cohort study. In all women, blood samples were collected during the first trimester of pregnancy. Thirty-two women had additional maternal and cord blood samples collected at delivery. Blood samples were analyzed by inductively coupled plasma mass spectrometry. At delivery, Cd median (IQR) concentration in maternal blood was 0.34 µg/L (0.24-0.46) in this non-smoking population. Pb median (IQR) concentration in maternal blood at delivery was 37.4 µg/L (30.5-52.0), with 31.3% of blood Pb levels above the 50 μg/L threshold. These pregnant women lived in semi-rural lakeside villages. Potential sources of Pb exposure identified during pregnancy were having water supply by drill pump and activities such as smoking fish by the woman and fishing by the household head. At delivery, Zn, Cu, and Mn median (IQR) concentrations in maternal blood were, respectively, 5415 μg/L (4894-5822), 1609 μg/L (1295-1771) and 16.0 μg/L (12.5-20.8). Pb, Cd, Mn and Cu blood concentrations were significantly higher at delivery than during the first trimester of pregnancy. Pb, Cd, Zn and Cu concentrations were significantly lower in cord blood than in maternal blood, contrary to Mn concentration, which was significantly higher in cord blood than in maternal blood at delivery. This exploratory study is the first one performed in Benin, and warns us about exposition of women from Sô-Ava district to Pb and Cd during pregnancy.
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Affiliation(s)
- Marine Guy
- Université Claude Bernard Lyon 1, Lyon, France; UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France.
| | - Manfred Accrombessi
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France; Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin.
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France.
| | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin.
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Cotonou, Benin.
| | - Barbara Le Bot
- Univ Rennes, EHESP, Inserm, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; EHESP, Inserm, CRESS (Centre de Recherche Epidémiologie et Biostatistique Sorbonne Paris Cité), Obstetrical, Perinatal, and Pediatric Epidemiology Team, UMR1153, F-35000 Rennes, France.
| | - Philippe Glorennec
- Univ Rennes, EHESP, Inserm, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; EHESP, Inserm, CRESS (Centre de Recherche Epidémiologie et Biostatistique Sorbonne Paris Cité), Obstetrical, Perinatal, and Pediatric Epidemiology Team, UMR1153, F-35000 Rennes, France.
| | - Florence Bodeau-Livinec
- EHESP, Inserm, CRESS (Centre de Recherche Epidémiologie et Biostatistique Sorbonne Paris Cité), Obstetrical, Perinatal, and Pediatric Epidemiology Team, UMR1153, F-35000 Rennes, France.
| | - Valérie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France.
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30
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Hounkonnou C, Djènontin A, Egbinola S, Houngbegnon P, Bouraima A, Soares C, Fievet N, Accrombessi M, Yovo E, Briand V, Cottrell G. Impact of the use and efficacy of long lasting insecticidal net on malaria infection during the first trimester of pregnancy - a pre-conceptional cohort study in southern Benin. BMC Public Health 2018; 18:683. [PMID: 29859090 PMCID: PMC5984809 DOI: 10.1186/s12889-018-5595-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/23/2018] [Indexed: 11/22/2022] Open
Abstract
Background Malaria in pregnancy is prevalent in Sub-Saharan Africa. The first trimester of pregnancy is a critical period and the best preventive measure is Long Lasting Insecticidal Nets (LLIN). Unfortunately, few studies have been conducted which focuses on the usage and efficacy of LLIN on malaria prevention during the first trimester. Methods We assessed the use and effectiveness of LLIN in early pregnancy in Benin and its impact on malaria infection risk. We followed-up a cohort of 240 pregnant women from pre-conception to the end of the first trimester of pregnancy in Southern Benin. Parasitological, maternal and LLIN data were actively collected before, at the beginning and end of the first trimester of pregnancy. A Cox regression model was used to determine the relationship between the time to onset of the first malaria infection and the use, physical integrity, and bio-efficacy of the LLIN, adjusted for relevant covariables. Results The good use, good physical integrity and biological efficacy of LLIN were associated with a decreased risk of occurrence of the first malaria infection in early pregnancy (HRa = 0.38; (0.18–0.80); p < 0.001; HRa = 0.59; (0.29–1.19); p < 0.07; HRa = 0.97; (0.94–1.00); p < 0.04 respectively), after adjustment for other covariates. Primi/secundigravidity and malaria infection before pregnancy were associated with a risk of earlier onset of malaria infection. Conclusion The classically used LLIN’s indicators of possession and use may not be sufficient to characterize the true protection of pregnant women in the first trimester of pregnancy. Indicators of physical integrity and bio-efficacy should be integrated with those indicators in evaluation studies. Electronic supplementary material The online version of this article (10.1186/s12889-018-5595-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cornélia Hounkonnou
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France. .,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin.
| | - Armel Djènontin
- Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin.,Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | | | - Parfait Houngbegnon
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin
| | - Aziz Bouraima
- Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | | | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France
| | - Manfred Accrombessi
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France.,Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin
| | - Emmanuel Yovo
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin
| | - Valérie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France
| | - Gilles Cottrell
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France.
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Accrombessi M, Yovo E, Cottrell G, Agbota G, Gartner A, Martin-Prevel Y, Fanou-Fogny N, Djossinou D, Zeitlin J, Tuikue-Ndam N, Bodeau-Livinec F, Houzé S, Jackson N, Ayemonna P, Massougbodji A, Cot M, Fievet N, Briand V. Cohort profile: effect of malaria in early pregnancy on fetal growth in Benin (RECIPAL preconceptional cohort). BMJ Open 2018; 8:e019014. [PMID: 29317419 PMCID: PMC5781192 DOI: 10.1136/bmjopen-2017-019014] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE REtard de Croissance Intra-uterin et PALudisme (RECIPAL) is an original preconceptional cohort designed to assess the consequences of malaria during the first trimester of pregnancy, which is a poorly investigated period in Africa and during which malaria may be detrimental to the fetus. PARTICIPANTS For this purpose, a total of 1214 women of reproductive age living in Sô-Ava and Akassato districts (south Benin) were followed up monthly from June 2014 to December 2016 until 411 of them became pregnant. A large range of health determinants was collected both before and during pregnancy from the first weeks of gestation to delivery. Five Doppler ultrasound scans were performed for early dating of the pregnancy and longitudinal fetal growth assessment. FINDINGS TO DATE Pregnant women were identified at a mean of 6.9 weeks of gestation (wg). Preliminary results confirmed the high prevalence of malaria in the first trimester of pregnancy, with more than 25.4% of women presenting at least one microscopic malarial infection during this period. Most infections occurred before six wg. The prevalence of low birth weight, small birth weight for gestational age (according to INTERGROWTH-21st charts) and preterm birth was 9.3%, 18.3% and 12.6%, respectively. FUTURE PLANS REtard de Croissance Intra-uterin et PALudisme (RECIPAL) represents at this time a unique resource that will provide information on multiple infectious (including malaria), biological, nutritional and environmental determinants in relation to health outcomes in women of reproductive age, pregnant women and their newborns. It will contribute to better define future recommendations for the prevention of malaria in early pregnancy and maternal malnutrition in Africa. It confirms that it is possible to constitute a preconceptional pregnancy cohort in Africa and provides valuable information for researchers starting cohorts in the future.
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Affiliation(s)
- Manfred Accrombessi
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Benin
| | - Emmanuel Yovo
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Benin
| | - Gilles Cottrell
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
| | - Gino Agbota
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Benin
| | - Agnès Gartner
- UMR204-Nutripass, French National Research Institute for Sustainable Development (IRD), Université de Montpellier, Montpellier, France
| | - Yves Martin-Prevel
- UMR204-Nutripass, French National Research Institute for Sustainable Development (IRD), Université de Montpellier, Montpellier, France
| | - Nadia Fanou-Fogny
- Ecole de Nutrition et des Sciences et Technologies Alimentaires (ENSTA), Faculté des Sciences Agronomiques, Université d’Abomey-Calavi, Abomey-Calavi, Benin
| | - Diane Djossinou
- UMR204-Nutripass, French National Research Institute for Sustainable Development (IRD), Université de Montpellier, Montpellier, France
- Ecole de Nutrition et des Sciences et Technologies Alimentaires (ENSTA), Faculté des Sciences Agronomiques, Université d’Abomey-Calavi, Abomey-Calavi, Benin
| | - Jennifer Zeitlin
- Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Centre for Epidemiology and Biostatistics (U1153-EPOPé), National Institute for Health and Medical Research (INSERM), Université Paris Descartes, Paris, France
| | - Nicaise Tuikue-Ndam
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
| | - Florence Bodeau-Livinec
- Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Centre for Epidemiology and Biostatistics (U1153-EPOPé), National Institute for Health and Medical Research (INSERM), Université Paris Descartes, Paris, France
- Département Méthodes Quantitatives en Santé Publique, Ecole des Hautes Etudes en Santé Publique (EHESP), Université de Rennes, Rennes, France
| | - Sandrine Houzé
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Laboratoire de Parasitologie, CNR du Paludisme, AP-HP, Hôpital Bichat, Paris, France
| | - Nicola Jackson
- Department of Obstetrics and Gynaecology, Oxford University, Oxford, UK
| | - Paul Ayemonna
- Service de Gynécologie et Obstétrique, Centre Hospitalier Universitaire d’Abomey-Calavi, Abomey-Calavi, Benin
| | - Achille Massougbodji
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Cotonou, Benin
| | - Michel Cot
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
| | - Valérie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
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32
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Patel JC, Hathaway NJ, Parobek CM, Thwai KL, Madanitsa M, Khairallah C, Kalilani-Phiri L, Mwapasa V, Massougbodji A, Fievet N, Bailey JA, Ter Kuile FO, Deloron P, Engel SM, Taylor SM, Juliano JJ, Tuikue Ndam N, Meshnick SR. Increased risk of low birth weight in women with placental malaria associated with P. falciparum VAR2CSA clade. Sci Rep 2017; 7:7768. [PMID: 28801627 PMCID: PMC5554196 DOI: 10.1038/s41598-017-04737-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/30/2017] [Indexed: 11/17/2022] Open
Abstract
Pregnancy associated malaria (PAM) causes adverse pregnancy and birth outcomes owing to Plasmodium falciparum accumulation in the placenta. Placental accumulation is mediated by P. falciparum protein VAR2CSA, a leading PAM-specific vaccine target. The extent of its antigen diversity and impact on clinical outcomes remain poorly understood. Through amplicon deep-sequencing placental malaria samples from women in Malawi and Benin, we assessed sequence diversity of VAR2CSA’s ID1-DBL2x region, containing putative vaccine targets and estimated associations of specific clades with adverse birth outcomes. Overall, var2csa diversity was high and haplotypes subdivided into five clades, the largest two defined by homology to parasites strains, 3D7 or FCR3. Across both cohorts, compared to women infected with only FCR3-like variants, women infected with only 3D7-like variants delivered infants with lower birthweight (difference: −267.99 g; 95% Confidence Interval [CI]: −466.43 g,−69.55 g) and higher odds of low birthweight (<2500 g) (Odds Ratio [OR] 5.41; 95% CI:0.99,29.52) and small-for-gestational-age (OR: 3.65; 95% CI: 1.01,13.38). In two distinct malaria-endemic African settings, parasites harboring 3D7-like variants of VAR2CSA were associated with worse birth outcomes, supporting differential effects of infection with specific parasite strains. The immense diversity coupled with differential clinical effects of this diversity suggest that an effective VAR2CSA-based vaccine may require multivalent activity.
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Affiliation(s)
- Jaymin C Patel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA.
| | - Nicholas J Hathaway
- Program in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, MA, USA
| | - Christian M Parobek
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, USA
| | - Kyaw L Thwai
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - Mwayiwawo Madanitsa
- College of Medicine, University of Malawi, Blantyre, Malawi.,Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Carole Khairallah
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | | | - Victor Mwapasa
- College of Medicine, University of Malawi, Blantyre, Malawi
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le paludisme associé à la Grossesse et à l'Enfance, Université d'Abomey-Calavi, Cotonou, Benin
| | - Nadine Fievet
- COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,UMR216 - MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Jeffery A Bailey
- Program in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, MA, USA.,Division of Transfusion Medicine, Department of Medicine, University of Massachusetts, Worcester, MA, USA
| | - Feiko O Ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Philippe Deloron
- COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,UMR216 - MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Stephanie M Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - Steve M Taylor
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA.,Division of Infectious Diseases, Duke University Medical Center and Duke Global Health Institute, Durham, NC, USA
| | - Jonathan J Juliano
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA.,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, USA.,Division of Infectious Diseases, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Nicaise Tuikue Ndam
- COMUE Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,UMR216 - MERIT, Institut de Recherche pour le Développement, Paris, France
| | - Steven R Meshnick
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
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Cates JE, Unger HW, Briand V, Fievet N, Valea I, Tinto H, D’Alessandro U, Landis SH, Adu-Afarwuah S, Dewey KG, ter Kuile FO, Desai M, Dellicour S, Ouma P, Gutman J, Oneko M, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Madanitsa M, Mwapasa V, Ashorn P, Maleta K, Mueller I, Stanisic D, Schmiegelow C, Lusingu JPA, van Eijk AM, Bauserman M, Adair L, Cole SR, Westreich D, Meshnick S, Rogerson S. Malaria, malnutrition, and birthweight: A meta-analysis using individual participant data. PLoS Med 2017; 14:e1002373. [PMID: 28792500 PMCID: PMC5549702 DOI: 10.1371/journal.pmed.1002373] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/11/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Four studies previously indicated that the effect of malaria infection during pregnancy on the risk of low birthweight (LBW; <2,500 g) may depend upon maternal nutritional status. We investigated this dependence further using a large, diverse study population. METHODS AND FINDINGS We evaluated the interaction between maternal malaria infection and maternal anthropometric status on the risk of LBW using pooled data from 14,633 pregnancies from 13 studies (6 cohort studies and 7 randomized controlled trials) conducted in Africa and the Western Pacific from 1996-2015. Studies were identified by the Maternal Malaria and Malnutrition (M3) initiative using a convenience sampling approach and were eligible for pooling given adequate ethical approval and availability of essential variables. Study-specific adjusted effect estimates were calculated using inverse probability of treatment-weighted linear and log-binomial regression models and pooled using a random-effects model. The adjusted risk of delivering a baby with LBW was 8.8% among women with malaria infection at antenatal enrollment compared to 7.7% among uninfected women (adjusted risk ratio [aRR] 1.14 [95% confidence interval (CI): 0.91, 1.42]; N = 13,613), 10.5% among women with malaria infection at delivery compared to 7.9% among uninfected women (aRR 1.32 [95% CI: 1.08, 1.62]; N = 11,826), and 15.3% among women with low mid-upper arm circumference (MUAC <23 cm) at enrollment compared to 9.5% among women with MUAC ≥ 23 cm (aRR 1.60 [95% CI: 1.36, 1.87]; N = 9,008). The risk of delivering a baby with LBW was 17.8% among women with both malaria infection and low MUAC at enrollment compared to 8.4% among uninfected women with MUAC ≥ 23 cm (joint aRR 2.13 [95% CI: 1.21, 3.73]; N = 8,152). There was no evidence of synergism (i.e., excess risk due to interaction) between malaria infection and MUAC on the multiplicative (p = 0.5) or additive scale (p = 0.9). Results were similar using body mass index (BMI) as an anthropometric indicator of nutritional status. Meta-regression results indicated that there may be multiplicative interaction between malaria infection at enrollment and low MUAC within studies conducted in Africa; however, this finding was not consistent on the additive scale, when accounting for multiple comparisons, or when using other definitions of malaria and malnutrition. The major limitations of the study included availability of only 2 cross-sectional measurements of malaria and the limited availability of ultrasound-based pregnancy dating to assess impacts on preterm birth and fetal growth in all studies. CONCLUSIONS Pregnant women with malnutrition and malaria infection are at increased risk of LBW compared to women with only 1 risk factor or none, but malaria and malnutrition do not act synergistically.
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Affiliation(s)
- Jordan E. Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
- * E-mail:
| | - Holger W. Unger
- Department of Obstetrics and Gynaecology, Edinburgh Royal Infirmary, Edinburgh, United Kingdom
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Valerie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France
| | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto D’Alessandro
- Medical Research Council Unit, The Gambia; London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sarah H. Landis
- Worldwide Epidemiology, GlaxoSmithKline, Uxbridge, United Kingdom
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Kathryn G. Dewey
- Department of Nutrition, University of California, Davis, California, United States of America
| | - Feiko O. ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Stephanie Dellicour
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Julie Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Martina Oneko
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Laurence Slutsker
- Malaria and Neglected Tropical Diseases, Center for Malaria Control and Elimination, PATH, Seattle, Washington, United States of America
| | - Dianne J. Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Mwayiwawo Madanitsa
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Victor Mwapasa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Per Ashorn
- Center for Child Health Research University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, Victoria, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Depart. Of Immunology and Microbiology, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
| | - John P. A. Lusingu
- Centre for Medical Parasitology, Depart. Of Immunology and Microbiology, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - Anna Maria van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Melissa Bauserman
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, School of Medicine, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Nutrition, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Linda Adair
- Department of Nutrition, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Stephen R. Cole
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Daniel Westreich
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Steven Meshnick
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Stephen Rogerson
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
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34
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Gbédandé K, Fievet N, Viwami F, Ezinmegnon S, Issifou S, Chippaux JP, Dossou Y, Moutairou K, Massougbodji A, Ndam N, de Jongh WA, Søgaard TMM, Salanti A, Nielsen MA, Esen M, Mordmüller B, Deloron P, Luty AJF. Clinical development of a VAR2CSA-based placental malaria vaccine PAMVAC: Quantifying vaccine antigen-specific memory B & T cell activity in Beninese primigravidae. Vaccine 2017; 35:3474-3481. [PMID: 28527688 DOI: 10.1016/j.vaccine.2017.05.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 05/04/2017] [Accepted: 05/06/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND The antigen VAR2CSA plays a pivotal role in the pathophysiology of pregnancy-associated malaria (PAM) caused by Plasmodium falciparum. A VAR2CSA-based vaccine candidate, PAMVAC, is under development by an EU-funded multi-country consortium (PlacMalVac project). As part of PAMVAC's clinical development, we quantified naturally acquired vaccine antigen-specific memory B and T cell responses in Beninese primigravidae recruited at the beginning of pregnancy and followed up to delivery and beyond. METHODS Clinical and parasitological histories were compiled from monthly clinic visits. On 4 occasions (first and fifth month of pregnancy, delivery, 6months post-delivery) peripheral blood mononuclear cells were isolated for in vitro assays. PAMVAC-specific memory B cells as well as those specific for a PAM unrelated P. falciparum antigen (PfEMP1-CIDR1a) and for tetanus toxoid were quantified by ELISpot. Memory T cell responses were assessed by quantifying cytokines (IL-5, IL-6, IL-10, IL-13, IFN-γ, TNF-α) in supernatants of cells stimulated in vitro either with PAMVAC, or mitogen (PHA). RESULTS Both tetanus toxoid- and PAMVAC-specific memory B cell frequencies increased to reach peak levels in the 5th month and at delivery, respectively and persisted post-delivery. The frequency of CIDR1a-specific memory B cells was stable during pregnancy, but declined post-delivery. The cumulated prevalence of infection with P. falciparum during pregnancy was 61% by microscopy. In women with a history of such infections, a significantly higher frequency of PAMVAC-specific memory B cells was observed at delivery. PAMVAC-specific pro-inflammatory (IFN-γ, TNF) responses tended to be higher at delivery in those with a history of infection. Mitogen-induced IL-5/IL-13 responses were significantly enhanced in the same women. CONCLUSIONS PAMVAC-specific memory B cells are induced during first pregnancies and are maintained post-delivery. Women with a T helper cell profile biased towards production of Th2-type cytokines have a greater risk of infection with P. falciparum.
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Affiliation(s)
- Komi Gbédandé
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Benin; MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
| | - Nadine Fievet
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
| | - Firmine Viwami
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin.
| | - Sem Ezinmegnon
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin.
| | - Saadou Issifou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin.
| | - Jean-Philippe Chippaux
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
| | - Yannelle Dossou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin.
| | - Kabirou Moutairou
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Benin.
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin.
| | - Nicaise Ndam
- MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
| | | | - T Max M Søgaard
- ExpreS(2)ion Biotechnologies SCION-DTU Science Park DK-2970, Hoersholm, Denmark.
| | - Ali Salanti
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.
| | - Morten A Nielsen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.
| | - Meral Esen
- Institut für Tropenmedizin, Eberhard Karls Universität Tübingen, Tübingen, Germany.
| | - Benjamin Mordmüller
- Institut für Tropenmedizin, Eberhard Karls Universität Tübingen, Tübingen, Germany.
| | - Philippe Deloron
- MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
| | - Adrian J F Luty
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; MERIT UMR D216, Institut de Recherche pour le Développement, Université Paris Descartes, COMUE Sorbonne Paris Cité, 75006 Paris, France.
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35
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Tétard M, Milet J, Dechavanne S, Fievet N, Dorin-Semblat D, Elion J, Fairhurst RM, Deloron P, Tuikue-Ndam N, Gamain B. Heterozygous HbAC but not HbAS is associated with higher newborn birthweight among women with pregnancy-associated malaria. Sci Rep 2017; 7:1414. [PMID: 28469130 PMCID: PMC5431107 DOI: 10.1038/s41598-017-01495-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/28/2017] [Indexed: 12/21/2022] Open
Abstract
Pregnancy-associated malaria (PAM) is associated with poor pregnancy outcomes. Hemoglobin S (HbS) and hemoglobin C (HbC) mutations are frequently encountered in malaria-endemic areas of Africa, where they protect children from severe and uncomplicated Plasmodium falciparum malaria. However, scant epidemiological data exist on the impact of these Hb variants on PAM. A prospective cohort of 635 Beninese pregnant women was recruited before 24 weeks of gestational age and followed until the end of pregnancy. HbAA, HbAC, and HbAS genotypes were determined and tested for association with pregnancy outcomes and PAM indicators using linear and logistic multivariate models. Newborns from HbAC mothers had higher birthweights than those from HbAA mothers among women infected at any time during pregnancy (mean difference 182.9 g, p = 0.08), or during the first half of pregnancy (654.3 g, p = 0.0006). No such birthweight differences were observed between newborns from HbAS and HbAA mothers. HbAC and HbAS were not associated with other pregnancy outcomes or PAM indicators. In conclusion, HbAC but not HbAS is associated with an improved birth outcome in pregnant women with documented PAM. Higher-birthweight newborns from HbAC mothers may have a survival advantage that contributes to the natural selection of HbC in malaria-endemic areas.
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Affiliation(s)
- Marilou Tétard
- Université Sorbonne Paris Cité, Université Paris Diderot, Inserm, INTS, Unité Biologie Intégrée du Globule Rouge, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Jacqueline Milet
- Institut de Recherche pour le Développement, UMR 216, Mère et Enfant face aux Infections Tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Paris, France
| | - Sébastien Dechavanne
- Université Sorbonne Paris Cité, Université Paris Diderot, Inserm, INTS, Unité Biologie Intégrée du Globule Rouge, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Nadine Fievet
- Institut de Recherche pour le Développement, UMR 216, Mère et Enfant face aux Infections Tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Paris, France
| | - Dominique Dorin-Semblat
- Université Sorbonne Paris Cité, Université Paris Diderot, Inserm, INTS, Unité Biologie Intégrée du Globule Rouge, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Jacques Elion
- Université Sorbonne Paris Cité, Université Paris Diderot, Inserm, INTS, Unité Biologie Intégrée du Globule Rouge, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Rick M Fairhurst
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Philippe Deloron
- Institut de Recherche pour le Développement, UMR 216, Mère et Enfant face aux Infections Tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Paris, France
| | - Nicaise Tuikue-Ndam
- Institut de Recherche pour le Développement, UMR 216, Mère et Enfant face aux Infections Tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Paris, France
| | - Benoît Gamain
- Université Sorbonne Paris Cité, Université Paris Diderot, Inserm, INTS, Unité Biologie Intégrée du Globule Rouge, Laboratoire d'Excellence GR-Ex, Paris, France.
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36
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Unger HW, Cates JE, Gutman J, Briand V, Fievet N, Valea I, Tinto H, d'Alessandro U, Landis SH, Adu-Afarwuah S, Dewey KG, Ter Kuile F, Dellicour S, Ouma P, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Nahlen B, Desai M, Madanitsa M, Kalilani-Phiri L, Ashorn P, Maleta K, Mueller I, Stanisic D, Schmiegelow C, Lusingu J, Westreich D, van Eijk AM, Meshnick S, Rogerson S. Maternal Malaria and Malnutrition (M3) initiative, a pooled birth cohort of 13 pregnancy studies in Africa and the Western Pacific. BMJ Open 2016; 6:e012697. [PMID: 28003287 PMCID: PMC5223676 DOI: 10.1136/bmjopen-2016-012697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
PURPOSE The Maternal Malaria and Malnutrition (M3) initiative has pooled together 13 studies with the hope of improving understanding of malaria-nutrition interactions during pregnancy and to foster collaboration between nutritionists and malariologists. PARTICIPANTS Data were pooled on 14 635 singleton, live birth pregnancies from women who had participated in 1 of 13 pregnancy studies. The 13 studies cover 8 countries in Africa and Papua New Guinea in the Western Pacific conducted from 1996 to 2015. FINDINGS TO DATE Data are available at the time of antenatal enrolment of women into their respective parent study and at delivery. The data set comprises essential data such as malaria infection status, anthropometric assessments of maternal nutritional status, presence of anaemia and birth weight, as well as additional variables such gestational age at delivery for a subset of women. Participating studies are described in detail with regard to setting and primary outcome measures, and summarised data are available from each contributing cohort. FUTURE PLANS This pooled birth cohort is the largest pregnancy data set to date to permit a more definite evaluation of the impact of plausible interactions between poor nutritional status and malaria infection in pregnant women on fetal growth and gestational length. Given the current comparative lack of large pregnancy cohorts in malaria-endemic settings, compilation of suitable pregnancy cohorts is likely to provide adequate statistical power to assess malaria-nutrition interactions, and could point towards settings where such interactions are most relevant. The M3 cohort may thus help to identify pregnant women at high risk of adverse outcomes who may benefit from tailored intensive antenatal care including nutritional supplements and alternative or intensified malaria prevention regimens, and the settings in which these interventions would be most effective.
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Affiliation(s)
- Holger W Unger
- Department of Obstetrics and Gynaecology, Edinburgh Royal Infirmary, Edinburgh, UK
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Jordan E Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Julie Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto d'Alessandro
- Medical Research Council Unit, The Gambia
- London School of Hygiene and Tropical Medicine, UK
- Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, California, USA
| | - Feiko Ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Stephanie Dellicour
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | - Laurence Slutsker
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Dianne J Terlouw
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme Liverpool School of Tropical Medicine, Liverpool, UK
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | | | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mwayi Madanitsa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Linda Kalilani-Phiri
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Per Ashorn
- Tampere Center for Child Health Research, Tampere, Finland
- Department for Pediatrics, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, Victoria, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Christentze Schmiegelow
- Faculty of Health Science, Department of Immunology and Microbiology, Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark
| | - John Lusingu
- Faculty of Health Science, Department of Immunology and Microbiology, Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - Daniel Westreich
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Anna Maria van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Steven Meshnick
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Stephen Rogerson
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
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Cot M, Le Hesran JY, Miailhes P, Roisin A, Fievet N, Barro D, Etya'Ale D, Deloron P, Carnevale P, Breart G. Effect of chloroquine prophylaxis during pregnancy on maternal haematocrit. Annals of Tropical Medicine & Parasitology 2016. [DOI: 10.1080/00034983.1998.11813259] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Gbédandé K, Cottrell G, Vianou B, Ibitokou S, Fernando A, Troye-Blomberg M, Salanti A, Moutairou K, Massougbodji A, Ndam NT, Deloron P, Luty AJF, Fievet N. Infections with Plasmodium falciparum during pregnancy affect VAR2CSA DBL-5 domain-specific T cell cytokine responses. Malar J 2016; 15:485. [PMID: 27653505 PMCID: PMC5031276 DOI: 10.1186/s12936-016-1525-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/06/2016] [Indexed: 01/15/2023] Open
Abstract
Background Current knowledge of human immunological responses to pregnancy-associated malaria-specific Plasmodium falciparum protein VAR2CSA concerns almost exclusively B cell-driven
antibody-mediated activity. Knowledge of VAR2CSA-specific T cell-mediated activity is minimal by comparison, with only a single published report of a study investigating VAR2CSA-derived peptide-specific T cell responses. The study described here represents an attempt to redress this balance. Methods Within the framework of a cohort study of 1037 pregnant Beninese, sub-groups were selected on the basis of the documented presence/absence of infection with P. falciparum and conducted detailed immunological assessments both at inclusion into the study and at delivery. Peripheral blood mononuclear cells were isolated, stimulated in vitro, and VAR2CSA DBL-5 domain-specific, IFN-γ-secreting T-cell frequencies and cytokine responses were quantified using flow cytometric techniques. Multivariate analyses were used to determine primarily whether the T cell-mediated DBL5-specific activity measured was associated with infection by P. falciparum adjusted for gravidity, anaemia and other cofactors. Results Infections with P. falciparum detected at inclusion were associated with enhanced non-specific TNF responses, whilst diminished non-specific and DBL-5-specific IL-10 responses were associated with infections detected at delivery. Infections during pregnancy led to enhanced non-specific and DBL-5-specific IFN-γ responses detectable at delivery but to concomitantly lower DBL-5-specific CD8+ IFN-γ responses. Prospective assessments indicated that non-specific pro-inflammatory responses detectable at inclusion in the study were associated with the occurrence of infections subsequently during pregnancy. Conclusions The findings represent a first step in elucidating the quantity and quality of cellular immunological responses to VAR2CSA, which will help in the development of the primary vaccine candidate for prevention of pregnancy-associated malaria. Electronic supplementary material The online version of this article (doi:10.1186/s12936-016-1525-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Komi Gbédandé
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin.,Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin.,Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France
| | - Gilles Cottrell
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin.,Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Bertin Vianou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Samad Ibitokou
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Aurax Fernando
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Marita Troye-Blomberg
- Department of Molecular Biosciences, the Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Ali Salanti
- Department of International Health, Institute of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Kabirou Moutairou
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Nicaise Tuikue Ndam
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin.,Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Philippe Deloron
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Adrian J F Luty
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Nadine Fievet
- Centre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin. .,Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France. .,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France.
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Briand V, Le Hesran JY, Mayxay M, Newton PN, Bertin G, Houzé S, Keomany S, Inthavong Y, Vannavong N, Chindavongsa K, Hongvanthong B, Fievet N. Prevalence of malaria in pregnancy in southern Laos: a cross-sectional survey. Malar J 2016; 15:436. [PMID: 27566274 PMCID: PMC5002160 DOI: 10.1186/s12936-016-1492-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/16/2016] [Indexed: 11/28/2022] Open
Abstract
Background There are no data on the burden of malaria in pregnancy (MiP) in Laos, where malaria still remains prevalent in the south. Methods Two cross-sectional surveys were conducted in 2014 to assess the prevalence of MiP in Vapi District, Salavan Province, southern Laos: the first consisted of screening 204 pregnant women during pregnancies [mean (95 % CI) gestational age: 23 (22–25) weeks] living in 30 randomly selected villages in Vapi District; the second was conducted among 331 pregnant women, who delivered during the study period in Vapi and Toumlane District Hospitals and in Salavan Provincial Hospital. Peripheral and placental malaria was detected using rapid diagnostic tests (RDT), thick blood smears (TBS) and real-time quantitative polymerase chain reactions (RT-qPCR). Factors associated with low birth weight (LBW) and maternal anaemia were assessed. Results In the villages, 12/204 women (5.9 %; 95 % CI 3.1–10.0) were infected with malaria as determined by RT-qPCR: 11 were Plasmodium vivax infections and 1 was mixed Plasmodium vivax/Plasmodium falciparum infection, among which 9 were sub-microscopic (as not detected by TBS). History of malaria during current pregnancy tended to be associated with a higher risk of MiP (aIRR 3.05; 95 % CI 0.94–9.88). At delivery, two Plasmodium falciparum sub-microscopic infections (one peripheral and one placental) were detected (4.5 %; 0.6–15.5) in Vapi District. In both surveys, all infected women stated they had slept under a bed net the night before the survey, and 86 % went to the forest for food-finding 1 week before the survey in median. The majority of infections (94 %) were asymptomatic and half of them were associated with anaemia. Overall, 24 % of women had LBW newborns. Factors associated with a higher risk of LBW were tobacco use (aIRR 2.43; 95 % CI 1.64–3.60) and pre-term delivery (aIRR 3.17; 95 % CI 2.19–4.57). Factors associated with a higher risk of maternal anaemia were no iron supplementation during pregnancy, Lao Theung ethnicity and place of living. Conclusions The prevalence of MiP in this population was noticeable. Most infections were asymptomatic and sub-microscopic vivax malaria, which raises the question of reliability of recommended national strategies for the screening and prevention of MiP in Laos. Electronic supplementary material The online version of this article (doi:10.1186/s12936-016-1492-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Valérie Briand
- Faculté de Pharmacie, Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), 4 avenue de l'Observatoire, 75006, Paris, France. .,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France.
| | - Jean-Yves Le Hesran
- Faculté de Pharmacie, Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), 4 avenue de l'Observatoire, 75006, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Mayfong Mayxay
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Microbiology Laboratory, Vientiane, Lao People's Democratic Republic.,Faculty of Postgraduate Studies, University of Health Sciences, Vientiane, Lao People's Democratic Republic.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Paul N Newton
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Microbiology Laboratory, Vientiane, Lao People's Democratic Republic.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Gwladys Bertin
- Faculté de Pharmacie, Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), 4 avenue de l'Observatoire, 75006, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Sandrine Houzé
- Faculté de Pharmacie, Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), 4 avenue de l'Observatoire, 75006, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France.,Laboratoire de Parasitologie, CNR du Paludisme, AP-HP, Hôpital Bichat, Paris, France
| | - Sommay Keomany
- Salavan Provincial Hospital, Salavan, Salavan Province, Lao People's Democratic Republic
| | - Yom Inthavong
- Vapi District Hospital, Vapi, Salavan Province, Lao People's Democratic Republic
| | - Nanthasane Vannavong
- Champasack Provincial Health Office, Champasack, Champasack Province, Lao People's Democratic Republic
| | | | - Bouasy Hongvanthong
- Center of Malariology, Parasitology and Entomology, Vientiane, Lao People's Democratic Republic
| | - Nadine Fievet
- Faculté de Pharmacie, Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), 4 avenue de l'Observatoire, 75006, Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
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Briand V, Saal J, Ghafari C, Huynh BT, Fievet N, Schmiegelow C, Massougbodji A, Deloron P, Zeitlin J, Cot M. Fetal Growth Restriction Is Associated With Malaria in Pregnancy: A Prospective Longitudinal Study in Benin. J Infect Dis 2016; 214:417-25. [DOI: 10.1093/infdis/jiw158] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 04/13/2016] [Indexed: 11/14/2022] Open
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Ndam NT, Denoeud-Ndam L, Doritchamou J, Viwami F, Salanti A, Nielsen MA, Fievet N, Massougbodji A, Luty AJF, Deloron P. Protective Antibodies against Placental Malaria and Poor Outcomes during Pregnancy, Benin. Emerg Infect Dis 2016; 21:813-23. [PMID: 25898123 PMCID: PMC4412227 DOI: 10.3201/eid2105.141626] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Immunity requires a vaccine that inhibits binding of infected erythrocytes to chondroitin sulfate. Placental malaria is caused by Plasmodium falciparum–infected erythrocytes that bind to placental tissue. Binding is mediated by VAR2CSA, a parasite antigen coded by the var gene, which interacts with chondroitin sulfate A (CSA). Consequences include maternal anemia and fetal growth retardation. Antibody-mediated immunity to placental malaria is acquired during successive pregnancies, but the target of VAR2CSA-specific protective antibodies is unclear. We assessed VAR2CSA-specific antibodies in pregnant women and analyzed their relationships with protection against placental infection, preterm birth, and low birthweight. Antibody responses to the N-terminal region of VAR2CSA during early pregnancy were associated with reduced risks for infections and low birthweight. Among women infected during pregnancy, an increase in CSA binding inhibition was associated with reduced risks for placental infection, preterm birth, and low birthweight. These data suggest that antibodies against VAR2CSA N-terminal region mediate immunity to placental malaria and associated outcomes. Our results validate current vaccine development efforts with VAR2CSA N-terminal constructs.
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MESH Headings
- Adult
- Antibodies, Protozoan/blood
- Antibodies, Protozoan/immunology
- Antibody Specificity/immunology
- Antigens, Protozoan/immunology
- Benin/epidemiology
- Erythrocytes/immunology
- Erythrocytes/parasitology
- Female
- Follow-Up Studies
- Humans
- Immunoglobulin G/blood
- Immunoglobulin G/immunology
- Infant
- Infant, Newborn
- Malaria/epidemiology
- Malaria/immunology
- Malaria/parasitology
- Malaria, Falciparum/epidemiology
- Malaria, Falciparum/immunology
- Malaria, Falciparum/parasitology
- Patient Outcome Assessment
- Placenta/parasitology
- Plasmodium falciparum/immunology
- Pregnancy
- Pregnancy Complications, Parasitic/epidemiology
- Pregnancy Complications, Parasitic/immunology
- Pregnancy Complications, Parasitic/parasitology
- Pregnancy Outcome
- Protein Binding
- Risk Factors
- Young Adult
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Nouatin O, Gbédandé K, Ibitokou S, Vianou B, Houngbegnon P, Ezinmegnon S, Borgella S, Akplogan C, Cottrell G, Varani S, Massougbodji A, Moutairou K, Troye-Blomberg M, Deloron P, Luty AJF, Fievet N. Infants' Peripheral Blood Lymphocyte Composition Reflects Both Maternal and Post-Natal Infection with Plasmodium falciparum. PLoS One 2015; 10:e0139606. [PMID: 26580401 PMCID: PMC4651557 DOI: 10.1371/journal.pone.0139606] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 09/14/2015] [Indexed: 11/19/2022] Open
Abstract
Maternal parasitoses modulate fetal immune development, manifesting as altered cellular immunological activity in cord blood that may be linked to enhanced susceptibility to infections in early life. Plasmodium falciparum typifies such infections, with distinct placental infection-related changes in cord blood exemplified by expanded populations of parasite antigen-specific regulatory T cells. Here we addressed whether such early-onset cellular immunological alterations persist through infancy. Specifically, in order to assess the potential impacts of P. falciparum infections either during pregnancy or during infancy, we quantified lymphocyte subsets in cord blood and in infants' peripheral blood during the first year of life. The principal age-related changes observed, independent of infection status, concerned decreases in the frequencies of CD4+, NKdim and NKT cells, whilst CD8+, Treg and Teff cells' frequencies increased from birth to 12 months of age. P. falciparum infections present at delivery, but not those earlier in gestation, were associated with increased frequencies of Treg and CD8+ T cells but fewer CD4+ and NKT cells during infancy, thus accentuating the observed age-related patterns. Overall, P. falciparum infections arising during infancy were associated with a reversal of the trends associated with maternal infection i.e. with more CD4+ cells, with fewer Treg and CD8+ cells. We conclude that maternal P. falciparum infection at delivery has significant and, in some cases, year-long effects on the composition of infants' peripheral blood lymphocyte populations. Those effects are superimposed on separate and independent age- as well as infant infection-related alterations that, respectively, either match or run counter to them.
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MESH Headings
- Adult
- Antigens, Protozoan/genetics
- Antigens, Protozoan/immunology
- Benin
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/pathology
- Female
- Fetal Blood/immunology
- Fetal Blood/parasitology
- Humans
- Immunophenotyping
- Infant
- Killer Cells, Natural/immunology
- Killer Cells, Natural/pathology
- Lymphocyte Count
- Malaria, Falciparum/immunology
- Malaria, Falciparum/parasitology
- Malaria, Falciparum/pathology
- Natural Killer T-Cells/immunology
- Natural Killer T-Cells/pathology
- Placenta/immunology
- Placenta/parasitology
- Placenta/pathology
- Plasmodium falciparum/immunology
- Pregnancy
- Pregnancy Complications, Parasitic/immunology
- Pregnancy Complications, Parasitic/parasitology
- Pregnancy Complications, Parasitic/pathology
- Retrospective Studies
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/pathology
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Affiliation(s)
- Odilon Nouatin
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Komi Gbédandé
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Samad Ibitokou
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Bertin Vianou
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Parfait Houngbegnon
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Sem Ezinmegnon
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Sophie Borgella
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France
| | - Carine Akplogan
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Gilles Cottrell
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Stefania Varani
- Unit of Microbiology, Department of Diagnostic, Experimental and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Achille Massougbodji
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
| | - Kabirou Moutairou
- Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Bénin
| | - Marita Troye-Blomberg
- Department of Molecular Biosciences, the Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Philippe Deloron
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Adrian J. F. Luty
- Department of Medical Microbiology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Nadine Fievet
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, MERIT UMR D216 Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
- * E-mail:
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Bacci A, Marchi S, Fievet N, Massougbodji A, Perrin RX, Chippaux JP, Sambri V, Landini MP, Varani S, Rossini G. High seroprevalence of chikungunya virus antibodies among pregnant women living in an urban area in Benin, West Africa. Am J Trop Med Hyg 2015; 92:1133-6. [PMID: 25940198 DOI: 10.4269/ajtmh.14-0092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 11/13/2014] [Indexed: 01/20/2023] Open
Abstract
The aim of this study was to investigate the seroprevalence of antichikungunya virus (anti-CHIKV) antibodies in pregnant women living in an urban area of Benin (West Africa). Results were obtained by screening sera collected in 2006 and 2007 with enzyme-linked immunosorbent assay (ELISA) for anti-CHIKV immunoglobulin G (IgG) and IgM. Positive results were confirmed by indirect immunofluorescence test and microneutralization assay. We found that a large proportion (36.1%) of pregnant women living in Cotonou had specific IgG against CHIKV, indicating a high seroprevalence of the infection in urban southern Benin, whereas no active cases of CHIKV infection were detected.
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Affiliation(s)
- Anastasia Bacci
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Serena Marchi
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Nadine Fievet
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Achille Massougbodji
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Renè Xavier Perrin
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Jean-Philippe Chippaux
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Vittorio Sambri
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Maria Paola Landini
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Stefania Varani
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
| | - Giada Rossini
- Unit of Clinical Microbiology, Regional Reference Centre for Microbiological Emergencies (CRREM), St. Orsola-Malpighi University Hospital, Bologna, Italy; Centre d'étude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Benin; Institut de Recherche pour le Développement, Unitès mixtes de Recherche (UMR) 216, Mère et Enfant Face aux Infections Tropicales, France; Pres Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France; Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Microbiology, Area Vasta Romagna (AVR), Pievesestina, Cesena, Italy
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Cottrell G, Moussiliou A, Luty AJF, Cot M, Fievet N, Massougbodji A, Deloron P, Tuikue Ndam N. Submicroscopic Plasmodium falciparum Infections Are Associated With Maternal Anemia, Premature Births, and Low Birth Weight. Clin Infect Dis 2015; 60:1481-8. [PMID: 25694651 DOI: 10.1093/cid/civ122] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 02/02/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Molecular, as opposed to microscopic, detection measures the real prevalence of Plasmodium falciparum infections. Such occult infections are common during pregnancy but their impact on pregnancy outcomes is unclear. We performed a longitudinal study to describe that impact. METHODS In a cohort of 1037 Beninese pregnant women, we used ultrasound to accurately estimate gestational ages. Infection with P. falciparum, hemoglobin concentration, use of intermittent preventive treatment during pregnancy (IPTp) for malaria, and other parameters were recorded during pregnancy. Using multivariate analyses, we evaluated the impact of submicroscopic infections on maternal anemia, premature birth, and low birth weight. RESULTS At inclusion, polymerase chain reaction (PCR) and microscopy detected infection in 40% and 16% of women, respectively. The proportion infected declined markedly after 2 doses of IPTp but rebounded to 34% (by PCR) at delivery. Submicroscopic infections during pregnancy were associated with lower mean hemoglobin irrespective of gravidity, and with increased anemia risk in primigravidae (odds ratio [OR], 2.23; 95% confidence interval [CI], .98-5.07). Prospectively, submicroscopic infections at inclusion were associated with significantly increased risks of low birth weight in primigravidae (OR, 6.09; 95% CI, 1.16-31.95) and premature births in multigravidae (OR, 2.25; 95% CI, 1.13-4.46). CONCLUSIONS In this detailed longitudinal study, we document the deleterious impact of submicroscopic P. falciparum parasitemia during pregnancy on multiple pregnancy outcomes. Parasitemia occurs frequently during pregnancy, but routine microscopic and rapid diagnostic tests fail to detect the vast majority of episodes. Our findings imply caution in any revision of the current strategies for prevention of pregnancy-associated malaria.
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Affiliation(s)
- Gilles Cottrell
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
| | - Azizath Moussiliou
- Institut de Recherche pour le Développement, UMR216-MERIT Université Pierre et Marie Curie, Paris, France
| | - Adrian J F Luty
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
| | - Michel Cot
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
| | - Nadine Fievet
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
| | - Achille Massougbodji
- Centre d'Etude et de Recherche sur le paludisme associé à la Grossesse et à l'Enfance, Université d'Abomey-Calavi, Cotonou, Benin
| | - Philippe Deloron
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
| | - Nicaise Tuikue Ndam
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes Institut de Recherche pour le Développement, UMR216-MERIT
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Borgella S, Fievet N, Huynh BT, Ibitokou S, Hounguevou G, Affedjou J, Sagbo JC, Houngbegnon P, Guezo-Mévo B, Massougbodji A, Luty AJF, Cot M, Deloron P. Impact of pregnancy-associated malaria on infant malaria infection in southern Benin. PLoS One 2013; 8:e80624. [PMID: 24236190 PMCID: PMC3827421 DOI: 10.1371/journal.pone.0080624] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 10/04/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Infants of mothers with placental Plasmodium falciparum infections at delivery are themselves more susceptible to malaria attacks or to infection in early life. METHODOLOGY/ PRINCIPAL FINDINGS To assess the impact of either the timing or the number of pregnancy-associated malaria (PAM) infections on the incidence of parasitemia or malaria attacks in infancy, we followed 218 mothers through pregnancy (monthly visits) up to delivery and their infants from birth to 12 months of age (fortnightly visits), collecting detailed clinical and parasitological data. After adjustment on location, mother's age, birth season, bed net use, and placental malaria, infants born to a mother with PAM during the third trimester of pregnancy had a significantly increased risk of infection (OR [95% CI]: 4.2 [1.6; 10.5], p = 0.003) or of malaria attack (4.6 [1.7; 12.5], p = 0.003). PAM during the first and second trimesters had no such impact. Similarly significant results were found for the effect of the overall number of PAM episodes on the time to first parasitemia and first malaria attack (HR [95% CI]: 2.95 [1.58; 5.50], p = 0.001 and 3.19 [1.59; 6.38], p = 0.001) respectively. CONCLUSIONS/ SIGNIFICANCE This study highlights the importance of protecting newborns by preventing repeated episodes of PAM in their mothers.
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Affiliation(s)
- Sophie Borgella
- Centre d’étude et de recherche sur le paludisme associé à la grossesse et à l’enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Nadine Fievet
- Centre d’étude et de recherche sur le paludisme associé à la grossesse et à l’enfance (CERPAGE), Faculté des Sciences de la Santé, Université d’Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
- * E-mail:
| | - Bich-Tram Huynh
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Samad Ibitokou
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Gbetognon Hounguevou
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Jacqueline Affedjou
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Jean-Claude Sagbo
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Parfait Houngbegnon
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Blaise Guezo-Mévo
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Achille Massougbodji
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Adrian J. F. Luty
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Michel Cot
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
| | - Philippe Deloron
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
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Bertin GI, Sabbagh A, Guillonneau F, Jafari-Guemouri S, Ezinmegnon S, Federici C, Hounkpatin B, Fievet N, Deloron P. Differential Protein Expression Profiles Between Plasmodium falciparum Parasites Isolated From Subjects Presenting With Pregnancy-Associated Malaria and Uncomplicated Malaria in Benin. J Infect Dis 2013; 208:1987-97. [DOI: 10.1093/infdis/jit377] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Bertin GI, Lavstsen T, Guillonneau F, Doritchamou J, Wang CW, Jespersen JS, Ezimegnon S, Fievet N, Alao MJ, Lalya F, Massougbodji A, Ndam NT, Theander TG, Deloron P. Expression of the domain cassette 8 Plasmodium falciparum erythrocyte membrane protein 1 is associated with cerebral malaria in Benin. PLoS One 2013; 8:e68368. [PMID: 23922654 PMCID: PMC3726661 DOI: 10.1371/journal.pone.0068368] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/29/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Plasmodium falciparum erythrocyte membrane protein-1 (PfEMP-1) is a highly polymorphic adherence receptor expressed on the surface of infected erythrocytes. Based on sequence homology PfEMP-1 variants have been grouped into three major groups A-C, the highly conserved VAR2CSA variants, and semi-conserved types defined by tandem runs of specific domains ("domain cassettes" (DC)). The PfEMP-1 type expressed determines the adherence phenotype, and is associated with clinical outcome of infection. METHODS Parasite isolates from Beninese children or women presenting with, respectively, CM or PAM were collected along with samples from patients with uncomplicated malaria (UM). We assessed the transcript level of var genes by RT-qPCR and the expression of PfEMP-1 proteins by LC-MS/MS. RESULTS Var genes encoding DC8 and Group A PfEMP-1 were transcribed more often and at higher levels in cerebral malaria vs. uncomplicated malaria patients. LC-MS/MS identified peptides from group A, DC8 PfEMP-1 more frequently in cerebral malaria than in uncomplicated malaria and pregnancy-associated malaria samples. CONCLUSION This is the first study to show association between PfEMP-1 subtype and disease outcome by direct analysis of parasites proteome. The results corroborate that group A and specifically the PfEMP-1 types DC8 are universally associated with cerebral malaria. This is a crucial observation for promoting studies on malaria pathogenesis.
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MESH Headings
- Adolescent
- Adult
- Benin
- Child
- Child, Preschool
- Chromatography, Liquid
- Female
- Gene Expression Regulation
- Genes, Protozoan
- Humans
- Malaria, Cerebral/genetics
- Malaria, Cerebral/parasitology
- Mass Spectrometry
- Plasmodium falciparum/genetics
- Plasmodium falciparum/physiology
- Pregnancy
- Pregnancy Complications, Parasitic/genetics
- Pregnancy Complications, Parasitic/parasitology
- Protein Structure, Tertiary
- Proteomics
- Protozoan Proteins/chemistry
- Protozoan Proteins/genetics
- Protozoan Proteins/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
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Affiliation(s)
- Gwladys I. Bertin
- Institut de Recherche pour le Développement (IRD), UMR216-Mère et enfant face aux infections tropicales, Paris, France
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
| | - Thomas Lavstsen
- Centre for Medical Parasitology at Department of International Health, Immunology and Microbiology, University of Copenhagen and at Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - François Guillonneau
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
- 3P5 proteomics facility, Université Paris Descartes, Paris, France
| | - Justin Doritchamou
- Institut de Recherche pour le Développement (IRD), UMR216-Mère et enfant face aux infections tropicales, Paris, France
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
- Centre d’Étude et de Recherche sur le Paludisme Associé à la Grossesse et l′Enfance (CERPAGE), Cotonou, Bénin
| | - Christian W. Wang
- Centre for Medical Parasitology at Department of International Health, Immunology and Microbiology, University of Copenhagen and at Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Jakob S. Jespersen
- Centre for Medical Parasitology at Department of International Health, Immunology and Microbiology, University of Copenhagen and at Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Sem Ezimegnon
- Centre d’Étude et de Recherche sur le Paludisme Associé à la Grossesse et l′Enfance (CERPAGE), Cotonou, Bénin
| | - Nadine Fievet
- Institut de Recherche pour le Développement (IRD), UMR216-Mère et enfant face aux infections tropicales, Paris, France
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
- Centre d’Étude et de Recherche sur le Paludisme Associé à la Grossesse et l′Enfance (CERPAGE), Cotonou, Bénin
| | - Maroufou J. Alao
- Paediatric Department, Mother and child hospital (HOMEL), Cotonou, Bénin
| | - Francis Lalya
- Paediatric Department, Centre National Hospitalo-Universitaire (CNHU), Cotonou, Bénin
| | - Achille Massougbodji
- Centre d’Étude et de Recherche sur le Paludisme Associé à la Grossesse et l′Enfance (CERPAGE), Cotonou, Bénin
| | - Nicaise Tuikue Ndam
- Institut de Recherche pour le Développement (IRD), UMR216-Mère et enfant face aux infections tropicales, Paris, France
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
- Centre d’Étude et de Recherche sur le Paludisme Associé à la Grossesse et l′Enfance (CERPAGE), Cotonou, Bénin
| | - Thor G. Theander
- Centre for Medical Parasitology at Department of International Health, Immunology and Microbiology, University of Copenhagen and at Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Philippe Deloron
- Institut de Recherche pour le Développement (IRD), UMR216-Mère et enfant face aux infections tropicales, Paris, France
- PRES Paris Sorbonne Cité, Université Paris Descartes, Paris, France
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Ibitokou S, Oesterholt M, Brutus L, Borgella S, Agbowaï C, Ezinmègnon S, Lusingu J, Schmiegelow C, Massougbodji A, Deloron P, Troye-Blomberg M, Varani S, Luty AJF, Fievet N. Peripheral blood cell signatures of Plasmodium falciparum infection during pregnancy. PLoS One 2012; 7:e49621. [PMID: 23239967 PMCID: PMC3519836 DOI: 10.1371/journal.pone.0049621] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 10/11/2012] [Indexed: 12/24/2022] Open
Abstract
Sequestration of Plasmodium falciparum-infected erythrocytes in placental intervillous spaces causes inflammation and pathology. Knowledge of the profiles of immune cells associated with the physiopathology of pregnancy-associated malaria (PAM) is scarce. We conducted a longitudinal, prospective study, both in Benin and Tanzania, including ∼1000 pregnant women in each site with systematic follow-up at scheduled antenatal visits until delivery. We used ex vivo flow cytometry to identify peripheral blood mononuclear cell (PBMC) profiles that are associated with PAM and anaemia, determining the phenotypic composition and activation status of PBMC in selected sub-groups with and without PAM both at inclusion and at delivery in a total of 302 women. Both at inclusion and at delivery PAM was associated with significantly increased frequencies both of B cells overall and of activated B cells. Infection-related profiles were otherwise quite distinct at the two different time-points. At inclusion, PAM was associated with anaemia, with an increased frequency of immature monocytes and with a decreased frequency of regulatory T cells (Treg). At delivery, infected women presented with significantly fewer plasmacytoid dendritic cells (DC), more myeloid DC expressing low levels of HLA-DR, and more effector T cells (Teff) compared to uninfected women. Independent associations with an increased risk of anaemia were found for altered antigen-presenting cell frequencies at inclusion, but for an increased frequency of Teff at delivery. Our findings emphasize the prominent role played by B cells during PAM whenever it arises during pregnancy, whilst also revealing signature changes in other circulating cell types that, we conclude, primarily reflect the relative duration of the infections. Thus, the acute, recently-acquired infections present at delivery were marked by changes in DC and Teff frequencies, contrasting with infections at inclusion, considered chronic in nature, that were characterized by an abundance of immature monocytes and a paucity of Treg in PBMC.
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Affiliation(s)
- Samad Ibitokou
- Centre d'étude et de recherche sur le paludisme associé à la grossesse et à l'enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Mayke Oesterholt
- Department of Medical Microbiology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Laurent Brutus
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Sophie Borgella
- Centre d'étude et de recherche sur le paludisme associé à la grossesse et à l'enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Carine Agbowaï
- Centre d'étude et de recherche sur le paludisme associé à la grossesse et à l'enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Sèm Ezinmègnon
- Centre d'étude et de recherche sur le paludisme associé à la grossesse et à l'enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - John Lusingu
- National Institute for Medical Research, Tanga, Tanzania
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Institute of International Health, Immunology, and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Achille Massougbodji
- Centre d'étude et de recherche sur le paludisme associé à la grossesse et à l'enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin
| | - Philippe Deloron
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Marita Troye-Blomberg
- Department of Immunology, Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Stefania Varani
- Unit of Microbiology, Department of Hematology and Oncology, University of Bologna, Bologna, Italy
| | - Adrian J. F. Luty
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
- Department of Medical Microbiology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- * E-mail:
| | - Nadine Fievet
- Institut de Recherche pour le Développement, UMR 216, Mère et enfant face aux infections tropicales, Paris, France
- PRES Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
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Boström S, Ibitokou S, Oesterholt M, Schmiegelow C, Persson JO, Minja D, Lusingu J, Lemnge M, Fievet N, Deloron P, Luty AJF, Troye-Blomberg M. Biomarkers of Plasmodium falciparum infection during pregnancy in women living in northeastern Tanzania. PLoS One 2012; 7:e48763. [PMID: 23155405 PMCID: PMC3498253 DOI: 10.1371/journal.pone.0048763] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 10/05/2012] [Indexed: 11/24/2022] Open
Abstract
In pregnant women, Plasmodium falciparum infections are an important cause of maternal morbidity as well as fetal and neonatal mortality. Erythrocytes infected by these malaria-causing parasites accumulate through adhesive interactions in placental intervillous spaces, thus evading detection in peripheral blood smears. Sequestered infected erythrocytes induce inflammation, offering the possibility of detecting inflammatory mediators in peripheral blood that could act as biomarkers of placental infection. In a longitudinal, prospective study in Tanzania, we quantified a range of different cytokines, chemokines and angiogenic factors in peripheral plasma samples, taken on multiple sequential occasions during pregnancy up to and including delivery, from P. falciparum-infected women and matched uninfected controls. The results show that during healthy, uninfected pregnancies the levels of most of the panel of molecules we measured were largely unchanged except at delivery. In women with P. falciparum, however, both comparative and longitudinal assessments consistently showed that the levels of IL-10 and IP-10 increased significantly whilst that of RANTES decreased significantly, regardless of gestational age at the time the infection was detected. ROC curve analysis indicated that a combination of increased IL-10 and IP-10 levels and decreased RANTES levels might be predictive of P. falciparum infections. In conclusion, our data suggest that host biomarkers in peripheral blood may represent useful diagnostic markers of P. falciparum infection during pregnancy, but placental histology results would need to be included to verify these findings.
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Affiliation(s)
- Stéphanie Boström
- Department of Immunology, Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
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Ouédraogo S, Bodeau-Livinec F, Briand V, Huynh BT, Koura GK, Accrombessi MMK, Fievet N, Massougbodji A, Deloron P, Cot M. Malaria and gravidity interact to modify maternal haemoglobin concentrations during pregnancy. Malar J 2012; 11:348. [PMID: 23088844 PMCID: PMC3520734 DOI: 10.1186/1475-2875-11-348] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 10/18/2012] [Indexed: 11/18/2022] Open
Abstract
Background Primigravidity is one of the main risk factors for both malaria and anaemia. Since the implementation of intermittent preventive treatment (IPTp) in sub-Saharan Africa, the relationship between anaemia and gravidity and its evolution during pregnancy has been little explored. This study aimed to evaluate the impact of gravidity on the variation of haemoglobin during pregnancy according to the timing of gestation. Methods Data from three studies carried out in nearby areas in south Benin (Ouidah, Comé, Allada) between 2005 and 2012 were analysed. At inclusion (first antenatal visit, ANV1) women’s age, area of residence, schooling, gravidity, gestational age, weight and height were recorded. Thick blood smears were performed on ANV1, second visit (ANV2) and at delivery. In Allada, women’s serum ferritin and CRP concentrations were also assessed. The impact of gravidity on maternal haemoglobin (Hb) was analysed using a logistic or linear regression depending on the outcome. The statistical significance was set to P < 0.05. Results In total, data from 3,591 pregnant women were analysed. Both univariate and multivariate analyses showed a constant association between Hb concentrations and gravidity in the three periods of Hb assessment (ANV1, ANV2 and delivery). Mean Hb concentration was significantly lower in primigravidae than in multigravidae at ANV1 (mean difference = -2.4 g/L, CI 95%: [-3.4, -1.4], P < 0.001). Afterwards, there was a significant increase in primigravidae only, with a tendency to reversal between primigravidae and multigravidae, which was confirmed at delivery (mean difference = 2.8 g/L, CI 95%: [1.3, 4.2], P < 0.001). The prevalence of malaria infection was halved between ANV1 and delivery in primigravidae while it decreased by only 38% among multigravidae, who were less prone to malaria infection (prevalence at ANV1, 20% and 10% respectively). Iron deficiency was more common in multigravidae, and it decreased slightly in this group between ANV1 and delivery. Conclusion In a context of IPTp, Hb levels improved progressively throughout pregnancy in primigravidae, likely as a result of reduction in malaria infection. In multigravidae, the improvement was less perceptible and anaemia was mainly due to iron deficiency.
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Affiliation(s)
- Smaïla Ouédraogo
- Mère et enfant face aux infections tropicales, IRD Unité mixte de recherche 216, Paris, France.
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